(CNN) -- The man suspected to be at the center of the plot to send bombs from Yemen to the United States is a Saudi national who authorities believe has been living in Yemen for the past three years.

Ibrahim Hassan al-Asiri is one of Saudi Arabia's most wanted men, according to a list published by the government last year. The Saudi government described al-Asiri as an explosives and poison expert.

On Friday, authorities in the United Arab Emirates and Britain found two packages with explosives that were destined for synagogues in Chicago, Illinois.

U.S. investigators believe al Qaeda bomb maker al-Asiri, 28, is linked to the packages.

The explosive found in the packages, PETN, is the same as the material found in the December 2009 foiled underwear bomb attack in the United States. It's a highly explosive organic compound that belongs to the same chemical family as nitroglycerin. Six grams of PETN are enough to blow a hole in the fuselage of an aircraft.

Al-Asiri was also suspected in the earlier attempted bombing case, where a Nigerian man, Umar Farouk AbdulMutallab, is accused of trying to set off a bomb hidden in his underwear on a flight.

Al-Asiri's brother, Abdullah, also appeared on the Saudi Arabia's most wanted list. According to press accounts, it was Ibrahim al-Asiri who lured his brother to the jihadist movement.

In 2009, Abdullah al-Asiri died when he detonated a bomb on his body with the intent of assassinating Saudi Prince Muhammed Bin Naif, a top security official. The suicide bombing attempt failed to kill its target. What are the answers to this following set of questions: 1. Who is wanted?
2. For what?
3. To do what with?
4. Is he an American?
5. Where is he from?
6. Where has he been recently?
7. For how long?
8. Is he a novice at making devices?
9. Does he work with any other dangerous items?
10. What?
11. How well does he understand these topics?
12. Was a religious establishment a target?
13. What kind?
14. In what city?
15. Is that in Canada?
16. What happened on a flight?
17. Where did he hide it?
18. What else happened that same year?
19. How did he die?
Answer: 1. Ibrahim Hassan al-Asiri.
2. Making explosive devices.
3. Send from Yemen to the United States.
4. No.
5. Saudi Arabia.
6. Yemen.
7. The past three years.
8. No.
9. Yes.
10. Poison.
11. Very well.
12. Yes.
13. Synagogues.
14. Chicago.
15. No.
16. A man tried to set off an explosive device.
17. In his underwear.
18. Another man died in an assassination attempt.
19. He detonated a bomb on his body

The Goldman Environmental Foundation recently recognized a group of individuals for their efforts to protect the environment. Each year, the American-based group honors environmental activists from six different areas.

The first three winners of the 2012 Goldman Prize are from Kenya, the Philippines and China.

The Goldman Environmental Foundation says Ikal Angelei is a hero to those who live around Lake Turkana. The Kenyan woman received the award because of her efforts to stop a dam project on a river in Ethiopia. Critics say the dam will harm the lake and restrict the flow of water for people who live nearby.

The Philippine island of Mindoro is home to those who depend on the area's natural resources for food and jobs. Edwin Gariguez became concerned when a European company announced plans to mine for nickel on the island. The Roman Catholic minister said waste materials from the mining project would pollute the water and destroy the forests. So he started a campaign to stop the project.

In China, Ma June is working with businesses to clean up their pollution. He formed a group that collects information about pollution, and publishes it on the Internet.

The Goldman Prize was also awarded to activists from Argentina, Russia and the United States.

Sofia Gatica of Argentina is from a town where farmers commonly use pesticide products to protect soybean crops from insects. The town also has a high rate of cancer. Miz Gatica believed that pesticide use was responsible for the death of her baby. She worked with other mothers to get government officials to ban the use of chemicals near populated areas.

Evgenia Chirikova objects to the plans to build a road through a protected forest just outside Moscow. She has demanded that Russian officials redirect the road away from the forest. She and her followers have been arrested for their activities. However, their campaign has gained widespread public support.

The sixth winner is American Caroline Cannon -- a community leader in Point Hope, Alaska. Miz Cannon is fighting to keep Arctic waters safe from oil and gas exploration. What are the answers to this following set of questions: 1. Who was one of the winners for the Goldman Prize in 2012?
2. What is the name of the foundations?
3. Who is Ikal Angelei a hero to?
4. What did she stop?
5. What would it have restricted?
6. What was being planned on Mindoro?
7. What would happen to the water?
8. And the forests?
9. What was MaJune trying to achieve?
10. In what country?
11. What other countries received the Prize?
Answer: 1. Ikal Angelei
2. The Goldman Environmental Foundation
3. to those who live around Lake Turkana
4. a dam project on a river in Ethiopia
5. the flow of water for people who live nearby
6. to mine for nickel on the island
7. pollute it
8. destroy them
9. to clean up their pollution
10. In China
11. Argentna, Russia and the United States

Washington (CNN) -- There is no argument the Republican presidential field has breadth.

From Mitt Romney, the former Republican governor of liberal Massachusetts, who needs to convince primary doubters of his core conservatism to Texas Rep. Ron Paul, sometimes called "the intellectual godfather" of the Tea Party, who needs to convince doubters that in his third run at the job he is more than a conversation-mover.

It's largely a field of formers -- not a contemporary marquee name or a perfect fit in the bunch:

Former House Speaker Newt Gingrich -- a conservative big-idea guy, who often careens off-message and carries some personal baggage. He might be carrying his own actual baggage now since almost his entire senior campaign staff has bolted.

An inside look at Monday's CNN debate

Former Minnesota Gov. Tim Pawlenty -- like Romney, he has chief executive credibility, having maneuvered his way through two terms in one of the bluest states in the country, but he'll have to defend some of that record to a conservative base and work on upping his campaign skills to the national level.

Former Pennsylvania Sen. Rick Santorum -- a favorite of social conservatives whose first pressing problem is convincing people he has a shot at powerhouse Team Obama.

And the former CEO of Godfather's Pizza Herman Cain, a conservative radio host. Dismissed by Republican stalwarts as entertainment, he has nonetheless found some poll traction.

Profiles of the seven GOP contenders

There is some question about depth -- almost 40% of Republicans say they're not satisfied with the field. Critics have called it weak but a top Republican strategist thinks it's more like wide-open, American style. What are the answers to this following set of questions: 1. who is Newt Gingrich?
2. Is he a conservative?
3. Is Mitt Rmney Democrat?
4. what is he?
5. where is he from?
6. who is a favorite of social conservatives?
7. does he have a problem?
8. what?
9. where is he from?
10. what is Ron Paul called sometimes?
11. of what party?
12. what does he need to do?
13. of what?
14. What does Herman Cain do?
15. what type?
16. and what was his previous job?
Answer:
1. Former House Speaker
2. Yes
3. No
4. Republican
5. Massachusetts
6. Rick Santorum
7. Yes
8. convincing people he has a shot at Obama
9. Pennsylvania
10. "the intellectual godfather"
11. Tea Party
12. convince doubters
13. his third run is more than him being a conversation-mover
14. radio host
15. conservative
16. former CEO of Godfather's Pizza