FILE - This 1994 file photo shows Yelena Bonner, the widow of physicist and Nobel Peace Prize winner Andrei Sakharov, in Moscow. Radio Liberty in Boston cited Pavel Litvinov, another longtime rights activist, as saying the 88-year-old Bonner died Friday June 17, 2011 at her home in Boston. The report on Sunday morning did not give a cause of death. (AP Photo/Sergei Karpukhin, File)