Definition: Given a document, generate a short title of the document. The title should convey the main idea/event/topic about which the document is being written. Note that URLs in the text have been replaced with [Link].
Input: H.R. McMaster  U.S. President Donald Trump's national security adviser  said at the Munich Security Conference that the federal indictments showed the U.S. was becoming "more and more adept at tracing the origins of this espionage and subversion."
"As you can see with the FBI indictment  the evidence is now really incontrovertible and available in the public domain " McMaster told a Russian delegate to the conference.
 McMaster  also scoffed at the suggestion that the U.S. would work with Russia on cyber security issues.
"I'm surprised there are any Russian cyber experts available based on how active most of them have been undermining our democracies in the West "  he  said to laughter. "So I would just say that we would love to have a cyber dialogue when Russia is sincere."

McMaster: Evidence Is 'Incontrovertible' That Russia Meddled in 2016 Election