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FILE - In a Jan. 6, 1981 file photo, Vice President Walter F. Mondale re-enacts the swearing in of Sen. Arlen Specter (R-Pa.), at the Capitol in Washington. Former U.S. Sen. Arlen Specter, longtime Senate moderate and architect of one-bullet theory in JFK death, died Sunday, Oct. 14, 2012. He was 82 . (AP Photo. File)

FILE - In a Jan. 6, 1981 file photo, Vice President Walter F. Mondale re-enacts the swearing in of Sen. Arlen Specter (R-Pa.), at the Capitol in Washington. Former U.S. Sen. Arlen Specter, longtime Senate moderate and architect of one-bullet theory in JFK death, died Sunday, Oct. 14, 2012. He was 82 . (AP Photo. File)

Former Sen. Arlen Specter

Friends and former colleagues, including Vice President Joe Biden, two former Pennsylvania governors, judges and others attended the funeral of former Sen. Arlen Specter in Pennsylvania on Oct. 16. Specter died on Oct. 14 at the age of 82, after battling non-Hodgkin lymphoma. (AP)