Senior US national security official to leave Justice Department

A senior US Justice Department official who oversaw efforts to prosecute Islamic State sympathizers and pursue cyber criminals is leaving the Obama administration next month, he told Reuters on Tuesday.
Assistant Attorney General John Carlin, chief of the national security division at the Justice Department, is departing on Oct. 15, less than a month before the U.S. presidential election.
Carlin, 43, confirmed his departure, expected to be announced later on Tuesday, in an interview with Reuters.
The departure comes as the Obama administration has struggled to develop clear guidelines on how to pursue hacking amid growing threats posed by foreign nation-states and criminal groups.
He declined to say where he was headed next. Carlin said he intended to spend time with his family before starting a new job, likely involved in cyber security.