Senior White House official Jofi Jospeh has been fired for leaking internal information using the anonnymous Twitter account, @NatSecWonk.
Joseph was director of nuclear non-proliferation on the White House National Security Council staff and had been helping negotiate nuclear issues with Iran. The Twitter account was known for being snarky and abrasive, and in its profile describes itself as "unapologetically" saying what everyone else only thinks. The account attacked both parties, and was critical of the Obama administration, as well as political reporters.
It's reported officials have been investigating who was behind the account for months, and when they finally did discover that it was Joseph, @NatSecWonk was abruptly shut down, without any explanation.
The White House confirmed to Reuters that Jofi Joseph no longer works there, but would not comment on personnel matters.