After being read Miranda rights, the Boston bombing suspect in custody, Dzhokhar Tsarnaev, has stopped talking to authorities, officials tell the Associated Press. boston bomber "The surviving suspect in the Boston Marathon bombings acknowledged to the FBI his role in the attacks but did so before he was advised of his constitutional right to keep quiet and seek a lawyer, U.S. officials said Wednesday," reports the Associated Press. "Once Dzhokhar Tsarnaev was read his rights on Monday, he immediately stopped talking, according to four officials of both political parties who were briefed on the interrogation but insisted on anonymity because...