FILED

U.S. COURT OF APPEALS

ELEVENTH CIRCUIT

 JUNE 3, 2011

JOHN LEY

CLERK

[DO NOT PUBLISH]

 IN THE UNITED STATES COURT OF APPEALS

 FOR THE ELEVENTH CIRCUIT

 ________________________

 No. 10-11586 

Non-Argument Calendar

 ________________________

 Agency No. A072-441-110

MAROUN ZEIDAN,

lllllllllllllllllllllPetitioner,

versus

U.S. ATTORNEY GENERAL,

llllllllllllllllllllRespondent.

________________________

 Petition for Review of a Decision of the

 Board of Immigration Appeals

 ________________________

(June 3, 2011)

Before WILSON, ANDERSON and BLACK, Circuit Judges.

PER CURIAM:

Maroun Zeidan seeks review of the Immigration Judge’s (“IJ”) and Board of
Immigration Appeals’ (“BIA”) respective decisions denying his application for

asylum, withholding of removal, and CAT relief. In his pro se brief, Zeidan

argues that the BIA: (1) erred in affirming the IJ’s finding that he failed to

demonstrate past persecution based on his Christian religion or his political

opinion; (2) erred in concluding that his credible testimony was insufficient to

satisfy his burden of proof for asylum based on changed country conditions, and in

refusing to find that the IJ was improperly influenced by Zeidan’s hunger strike

and a force-feed order issued by a U.S. District Court; (3) erred in refusing to find

that Zeidan satisfied his burden to show a credible fear of future persecution; and

(4) erred in upholding the IJ’s ruling the Zeidan was ineligible for asylum relief

based on his prior felony conviction.

When the BIA issues a decision, we review only that decision, except to the

extent that the BIA expressly adopts the IJ’s decision. Al Najjar v. Ashcroft, 257

F.3d 1262, 1284 (11th Cir. 2001). “Insofar as the Board adopts the IJ’s reasoning,

we will review the IJ’s decision as well.” Id. Here, the BIA agreed with reasoning

of the IJ, so we consider both decisions. 

To the extent that the decision under review was based on a legal

determination, review is de novo. Mohammed v. Ashcroft, 261 F.3d 1244, 1247

(11th Cir. 2001). Factual determinations, including credibility and asylum

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eligibility determinations, are reviewed under the “substantial evidence test.”

Kueviakoe v. U.S. Att’y Gen., 567 F.3d 1301, 1304 (11th Cir. 2009). We will

affirm if the decision is supported by reasonable, substantial, and probative

evidence of record. Al Najjar, 257 F.3d at 1284. This standard is “highly

deferential,” and we have held that a decision can be reversed only “if the

evidence compels a reasonable fact finder to find otherwise.” Kueviakoe, 567

F.3d at 1304 (quotation omitted); Al Najjar, 257 F.3d at 1284. Under this test,

we “view the record evidence in the light most favorable to the agency’s decision

and draw all reasonable inferences in favor of that decision.” Adefemi v. Ashcroft,

386 F.3d 1022, 1027 (11th Cir. 2004) (en banc). The fact that evidence in the

record may also support a conclusion contrary to the administrative findings is not

enough to justify a reversal. Id.

I. Past Persecution

Application of the “law of the case” doctrine is subject to de novo review.

Transamerica Leasing, Inc. v. Inst. of London Underwriters, 430 F.3d 1326, 1331

(11th Cir. 2005). 

Under the “law of the case” doctrine, the “findings of

fact and conclusions of law by an appellate court are

generally binding in all subsequent proceedings in the

same case in the trial court or on a later appeal.”

Westbrook v. Zant, 743 F.2d 764, 768 (11th Cir. 1984)

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(quoting Dorsey v. Continental Casualty Co., 730 F.2d

675, 678 (11th Cir. 1984)). This judicially created

doctrine [] serves several important purposes, including

(1) insuring that litigation on an issue will come to an

end, (2) discouraging “panel shopping” at the circuit

court level, and (3) assuring the obedience of lower

courts to the decisions of appellate courts. Westbrook,

743 F.2d at 768 n. 6; see Piambino v. Bailey, 757 F.2d

1112, 1120 (11th Cir. 1985). The doctrine does not

extend to every issue that could be ever raised in a given

litigation but rather is limited to those issues previously

decided; the law is clear, however, that the law of the

case doctrine “comprehends things decided by necessary

implication as well as those decided explicitly.” Wheeler

v. City of Pleasant Grove, 746 F.2d 1437, 1440 (11th

Cir. 1984) (per curiam) (emphasis omitted; quotation

omitted).

Heathcoat v. Potts, 905 F.2d 367, 370-71 (11th Cir. 1990).

Because the BIA and the United States Court of Appeals for the Ninth

Circuit expressly determined in Zeidan’s previous appeals that the original IJ was

correct in finding that Zeidan had failed to meet his burden to prove past

persecution—because he failed to testify credibly about the events he cited in

support of his 1992 asylum claim—the IJ and BIA in Zeidan’s subsequent

proceedings properly ruled that Zeidan could not re-litigate the issue of past

persecution. On November 14, 2001, the original IJ found Zeidan to be “wholly

incredible” on matters that went to the heart of Zeidan’s claim for asylum or

withholding of removal, including the purported past persecution he suffered. 

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This ruling was affirmed by the BIA and the Ninth Circuit. See Zeidan v.

Ashcroft, 119 Fed. App’x 88, 89-90 (9th Cir. 2004) (unpublished). Consistent

with our precedent, Zeidan was precluded from later arguing that he suffered past

persecution given the adverse ruling on past persecution in his earlier immigration

proceedings, and the IJ and BIA did not err in so ruling.

II. Asylum

An alien may qualify for asylum by presenting credible evidence showing

“(1) past persecution on account of [his] political opinion or any other protected

ground, or (2) a ‘well-founded fear’ that his political opinion or any other

protected ground will cause future persecution.” Sepulveda v. U.S. Att’y Gen., 401

F.3d 1226, 1230-31 (11th Cir. 2005). “[P]ersecution is an extreme concept,

requiring more than a few isolated incidents of verbal harassment or intimidation,

[and] mere harassment does not amount to persecution.” Sepulveda, 401 F.3d at

1231 (quotation marks and citations omitted); see also Djonda v. U.S. Att’y Gen.,

514 F.3d 1168 (11th Cir. 2008) (concluding that 36-hour detention, beating, and

threat of arrest did not amount to persecution). Protected grounds are race,

religion, nationality, membership in a particular social group, or political opinion. 

Sanchez v. U.S. Att’y Gen., 392 F.3d 434, 437 (11th Cir. 2004). If substantial

evidence supports the finding that an alien suffered particular harms for reasons

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other than race, religion, nationality, etc., the petition for review will be denied. 

See, e.g., Scheerer v. U.S. Att’y Gen., 445 F.3d 1311, 1315-16 (11th Cir. 2006). 

If the petitioner “cannot show past persecution, then the petitioner must

demonstrate a well-founded fear of future persecution that is both subjectively

genuine and objectively reasonable.” Ruiz v. U.S. Att’y Gen., 440 F.3d 1247, 1257

(11th Cir. 2006). “The subjective component can be proved ‘by the applicant’s

credible testimony that he or she genuinely fears persecution,’ while the objective

component ‘can be fulfilled either by establishing past persecution or that he or

she has a good reason to fear future persecution.’” Id. (quoting Al Najjar, 257 F.3d

at 1289). The petitioner must establish “that there is ‘a reasonable possibility that

he or she would be singled out individually for persecution,’ or that he is a

member of, or is identified with, a group that is subjected to a pattern or practice

of persecution.” Djonda, 514 F.3d at 1174 (citing 8 C.F.R. § 208.13(b)(2)(iii)).

In a withholding of removal claim, an alien shall not be removed to a

country if his life or freedom would be threatened on account of a protected

ground. INA § 241(b)(3), 8 U.S.C. § 1231(b)(3)(A). The alien must show that it

is “more likely than not [he] will be persecuted or tortured upon being returned to

[his] country.” Sepulveda, 401 F.3d at 1232 (citation omitted). An alien may

make this showing in two ways. First, an alien may establish past persecution

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based on a protected ground, in which case a rebuttable presumption is created

that his life or freedom would be threatened if she returned to his country. 

Mendoza v. U.S. Att’y Gen., 327 F.3d 1283, 1287 (11th Cir. 2003). Secondly, an

alien may qualify for withholding of removal if he “can demonstrate a future threat

to his life or freedom” based on a protected ground. Id.

To be eligible for CAT relief, an alien must demonstrate that, if removed to

his country of origin, it is more likely than not he would be tortured by, or with the

acquiescence of, government officials acting under color of law. 8 C.F.R. §§

208.16(c)(2), 208.17(a), 208.18(a)(1). To establish eligibility for CAT relief, the

applicant bears the burden of proving that it is more likely than not that he would

be tortured if returned to his country. Reyes-Sanchez v. U.S. Att’y Gen., 369 F.3d

1239, 1242 (11th Cir. 2004); see 8 C.F.R. § 208.16(c)(2). “Torture” is defined as

“any act by which severe pain or suffering. . . is intentionally inflicted on a person

for. . . any reason based on discrimination of any kind, when such pain or suffering

is inflicted by or at the instigation of or with the consent or acquiescence of a

public official or other person acting in an official capacity.” 8 C.F.R.

§ 208.18(a)(1). The burden of proof for an alien seeking withholding of removal

under the CAT, like the burden for an alien seeking withholding of removal under

the INA, is higher than the burden for showing entitlement to asylum. Al Najjar,

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257 F.3d at 1303.

We have held that adverse credibility determinations must be made

explicitly. See Yang v. U.S. Att’y Gen., 418 F.3d 1198, 1201 (11th Cir. 2005)

(holding that the IJ must make “clean determinations of credibility.”). In asylum

applications filed on or after May 11, 2005, an adverse credibility determination

may be based on any inconsistency, regardless of whether the inconsistency goes

to the heart of the claim. Tang v. U.S. Att’y Gen., 578 F.3d 1270, 1277 (11th Cir.

2009); INA § 208(b)(1)(B)(iii); 8 U.S.C. § 1158(b)(1)(B)(iii). “Considering the

totality of the circumstances, and all relevant factors, a trier of fact may base a

credibility determination on . . . the consistency between the applicant’s

. . . written and oral statements (whenever made and whether or not under oath,

and considering the circumstances under which the statements were made).” 8

U.S.C. § 1158(b)(1)(B)(iii). However, “[t]he weaker the applicant’s testimony, . . .

the greater the need for corroborative evidence.” Yang, 418 F.3d at 1201. “Once

an adverse credibility finding is made, the burden is on the applicant alien to show

that the IJ’s credibility decision was not supported by ‘specific, cogent reasons’ or

was not based on substantial evidence.” Forgue v. U.S. Att’y Gen., 401 F.3d 1282,

1287 (11th Cir. 2005) (citations omitted). 

If an alien’s testimony is credible, it may be sufficient to satisfy his burden

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of proof required to establish asylum eligibility. Kueviakoe, 567 F.3d at 1304. 

However, a denial of asylum relief can be supported solely by an adverse

credibility determination. Id. at 1304-05. 

The record belies Zeidan’s claim on appeal that his testimony at the 2009

hearing was credible. In fact, the IJ provided detailed findings to support his

conclusion that Zeidan had not testified credibly regarding his claim for asylum

based on changed country conditions. The IJ based his credibility finding on

inconsistences in Zeidan’s own testimony, dramatic inconsistencies between

Zeidan’s 1992 and 2009 asylum applications, and inconsistencies between

Zeidan’s and his brother’s testimony about their family still in Lebanon. The

record here thus demonstrates that there was substantial evidence to support the

IJ’s and BIA’s respective adverse credibility determinations, and these

determinations alone were sufficient to deny Zeidan’s asylum claim. Kueviakoe,

567 F.3d at 1304-05 (denial of asylum relief can be supported solely by an adverse

credibility determination).

Also, Zeidan offers no citation to the record or other proof to support his

bare assertion that the IJ was biased or improperly influenced by his hunger strike

or the force-feed order entered by the U.S. District Court. Our review of the

record reveals no evidence to support Zeidan’s assertion in this regard.

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III. Future Persecution

As discussed, the IJ and BIA found Zeidan not credible regarding his claim

that he had a reasonable fear of future persecution by Hezbollah if returned to

Lebanon. Regardless, the IJ and BIA alternatively found that Zeidan failed to

meet his burden to show that it was more likely than not that he would be

persecuted. There is substantial evidence in the record to support the IJ’s and

BIA’s conclusion in this regard. 

For example, the IJ reasoned that Zeidan proffered only generalized

assumptions about Hezbollah’s view of the Christian-based Lebanese Forces

(“LF”) to which Zeidan once belonged, that he had only a limited knowledge of

the current political structure and environment in Lebanon, that he provided no

proof that anyone would recognize him after 17 years outside the country, and that

he had family in Lebanon (all Christian, and one a former LF member) who have

lived there without incident. Further, State department data and a recent study by

Canadian authorities specifically cited by the IJ showed no widespread problems

for Christians in Lebanon, and the supporting documents also showed that there

was a peace accord signed between Hezbollah and the Lebanese Christian

leadership in 2008 (in Doha, Qatar), there is a power-sharing agreement between

Hezbollah and the Christian leadership, and that Hezbollah is a clear minority in

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the parliament. 

The IJ further noted that Zeidan’s expert did not offer any specifics

regarding any persecution danger to Zeidan, but rather only a general belief that

former LF members (like Zeidan) would be targeted by Hezbollah. The IJ also

reasoned that the documents provided by Zeidan to corroborate his claim only

confirmed his status as a Christian and former LF member, but did not provide any

support for his claim that he would likely be persecuted as a result of these facts. 

That several Christian members of Zeidan’s family, including a brother who

was also a member of the LF, continue to live in Lebanon without incident

provides further evidence to support the BIA’s and IJ’s rulings. See e.g., Ruiz, 440

F.3d at 1259 (“Ruiz’s claim was contradicted by his testimony that his son and his

parents have remained unharmed in the region of Colombia where Ruiz allegedly

was threatened.”). Accordingly, Zeidan has not shown that a conclusion contrary

to that reached by the IJ and BIA is compelled on this record. See Adefemi, 386

F.3d at 1027.

Finally, we are without jurisdiction to review Zeidan’s claim for CAT relief. 

His brief to the BIA contained only a single conclusory reference to the

Convention Against Torture, and his brief to this Court contains only three general

assertions of entitlement to CAT relief, but no legal argument. Zeidan’s CAT

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claim was therefore not fully exhausted at the BIA level, and was not adequately

presented here, and is dismissed. Amaya-Artunduaga, 463 F.3d at 1249-51.

IV. Eligibility for Asylum

A denial of asylum relief can be supported solely by an adverse credibility

determination. Kueviakoe, 567 F.3d at 1304-05. Further, an alien convicted of an

aggravated felony is ineligible for asylum. INA §§ 208(b)(2)(A)(ii), (B)(i). 

Section 237 provides:

Any alien who—(I) is convicted of a crime involving moral turpitude

committed within five years (or 10 years in the case of an alien

provided lawful permanent resident status under section 1255(j) of

this title) after the date of admission, and (II) is convicted of a crime

for which a sentence of one year or longer may be imposed, is

deportable.

INA § 237(a)(2)(A)(i)(I), 8 U.S.C. § 1227(a)(2)(A)(i)(I). An aggravated felony

includes an offense involving “fraud or deceit in which the loss to the victim or

victims exceeds $10,000,” as well as an attempt or conspiracy to commit such an

offense. INA § 101(a)(43)(M)(i), (U), 8 U.S.C. § 1101(a)(43)(M)(i), (U)

(emphasis added). Effective April 1, 1997, Congress amended the definition of

“aggravated felony” to include “a theft offense (including receipt of stolen

property) or burglary offense for which the term of imprisonment [is] at least one

year.” See Mohammed v. Ashcroft, 261 F.3d 1244, 1248 (11th Cir. 2001); INA

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§ 101(a)(43)(G), 8 U.S.C. § 1101(a)(43)(G). The expanded definition applies

retroactively to convictions that predate the amendment. Id. at 1250. 

We need not reach the question of whether Zeidan’s prior felony conviction

rendered him ineligible for asylum relief. The IJ (and the BIA) expressly deemed

Zeidan not credible on the issue of future persecution—just as the original IJ (and

the BIA) found him not credible on the issue of past persecution. These adverse

credibility findings alone were sufficient to deny Zeidan’s asylum claim, assuming

he was even eligible. See Kueviakoe, 567 F.3d at 1304-05.

Upon review of the record and consideration of the parties’ briefs, we deny

the petition in part and dismiss in part.

PETITION DENIED IN PART, DISMISSED IN PART.

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