Senate mulls subpoena after White House cybersecurity coordinator declines to testify

Summary: Members of the Senate express ongoing frustration about what they view as a lack of governmentwide coordination when it comes to protecting the nation from cyber attacks. Senators say the government's approach to cyber defense is still too disjointed. They're considering a subpoena to the White House for answers on what the Trump Administration is doing to fix the problem. Federal News Radio's Jared Serbu has details on Federal Drive with Tom Temin.