U.S. spy agencies have what they call conclusive evidence Russia provided hacked material from the Democratic National Committee to WikiLeaks through a third party, three sources have told Reuters. U.S. officials had concluded months earlier that Russian intelligence agencies had directed the hacking. But until now, they had been less certain that they could prove Russia also had controlled the release of information damaging to Democratic presidential candidate Hillary Clinton. Russian President Vladimir Putin and U.S. President-elect Donald Trump agree to improve relations of both countries The timing of the additional intelligence is important because President Barack Obama has faced criticism from his own party over why it took his administration months to respond to the cyber attack. Director of National Intelligence James Clapper, National Security Agency Director Mike Rogers and Undersecretary of Defense for Intelligence Marcel Lettre are all expected to appear before the S...