Russian President Vladimir Putin underwent treatment for advanced cancer in April, according to a report quoting three high-ranking US intelligence officials. Newsweek published the report Thursday, citing information the three intelligence officials – who represent three different US intelligence agencies – shared from a recent White House assessment of the Russian leader’s health status. In late May, US intelligence officials put together their fourth comprehensive assessment of Putin’s medical condition. The three officials, from the office of the Director of National Intelligence, a retired senior Air Force officer, and a Defense Intelligence Agency official, said that Putin appears to have...