As far as I am concerned Trump should start at the top and fire everyone who was involved in these leaks. They are not only the wrong thing to do they are crimes. They should be prosecuted like any of us would be if we did this. Wiki Leaks has proven to be correct on everything they have put out there.
The agency halted work on some projects while the F.B.I., suspecting a disaffected insider as the leaker, prepared to interview hundreds of people with access to the information.