U.S. says hackers probed voting systems, no sign of damage

(Reuters) - Hackers have probed the voting systems of many U.S. states but there is no sign that they have manipulated any voting data, Homeland Security Secretary Jeh Johnson said on Saturday. National security officials are investigating a number of possible leads suggesting that cyber-criminals are trying to influence the Nov. 8 presidential election, including by hacking into systems run by the Democratic National Committee. Republican candidate Donald Trump has repeatedly charged that the U