Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].

Q: Cook County Sheriff Tom Dart  is going to court to unmask the person who alleged in emails to politicians  Chicago police investigators and journalists that  Dart  attacked  his  wife at their South Side home.
 Dart  filed the legal papers Wednesday in his personal capacity  not as sheriff  and hired lawyer John F. Winters Jr.  who specializes in defamation cases. Such court filings are often a prelude to a defamation lawsuit filed against the person behind anonymous emails or web postings.
“ Tom  has been subjected to sustained attacks on  his  integrity  and even threats to  his  life  during  his  tenure as sheriff ” said Dennis Culloton  who is acting as  Dart ’s personal spokesman  in a statement. “Over the past several months  these attacks have escalated to include false and vicious rumors involving his wife and family  perpetuated by cowards who hide behind fake email addresses and anonymous blogs. Through this filing we hope to hold those people accountable.”
The first of two October emails cited in the filing allege  Dart  “committed a Domestic Battery” on his wife “causing visible injuries to her face” that were observed by responding Chicago and Cook County sheriff’s police on either Oct. 11 or 12. They allege a police report was taken but that the attacker was listed as “unknown” and that a 911 call was placed to  Dart ’s home.
“This incident is being attempted to be swept under the rug ” the email’s author  who describes himself as a “Cook County taxpayer” named “Dan ” writes.  “Tom Dart  should not be able to get away with this!”
Records show a complaint was also made to a Chicago police oversight agency in October alleging that police refused to act or take reports “in regards to an incident that occurred at  Sheriff Tom Dart’s  home that involved  his  wife and  his  girlfriend.”
RELATED: Sheriff Tom Dart’s personnel board halts firings  suspensions amid legal questions »

A: Cook County sheriff sues to unmask ' Dan ' an anonymous person accusing him of domestic abuse
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Q: Rep. Joe Barton   whose nude pic was spread on the internet Wednesday  contacted Capitol Police in regards to the woman who had possession of it â possibly making him a victim of ârevenge porn.â
The woman told the paper that  at that time  she had became aware that  Barton   who is not married  was involved in relationships with other women.
âI want your word that this ends â  Barton  said in a 2015 phone call to the woman.
 Barton  told the paper Wednesday that the phone conversation contained evidence of a âpotential crimeâ against him.
The Dallas Morning News noted that  Barton âs situation could apply to a ârevenge porn lawâ enacted by Texas legislators in 2015.
 He  added that Capitol Police had opened an inquiry on the matter.

A: Sexting congressman alerted Capitol Police about ârevenge pornâ
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Q: The United States is bracing for a heated political battle after venerable US Supreme Court Justice John Paul Stevens announced his retirement from the bench.
 George Washington University law school professor Jonathan Turley described Stevens's retirement as "an understandably sad moment for liberals."
 Stevens nearly beat the record of his long-serving predecessor  William Douglas  who served for 36 years.
 Born in 1920 in Chicago  Stevens first threw himself into the study of literature in the hope of becoming a professor like his mother.
 But he turned to law after joining the US Navy following the attacks on Pearl Harbor  serving as an intelligence officer from 1942 to 1945.

A:
Political battle looms after Justice Stevens says to retire
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