The director of the Defense Intelligence Agency (DIA), Lieutenant General Vincent R. Stewart, warned during congressional testimony yesterday that the “security challenges” the US faces are “more diverse and complex than those we have experienced in our lifetimes.” Stewart delivered his remarks to the House Armed Services Committee during a hearing devoted to assessing worldwide threats.

While Stewart addressed diverse national security issues, much of his written testimony was focused on what was once called the global war on terror.

Al Qaeda in Syria may “expand its territory,” while threatening the West

The Islamic State’s advances in Iraq and Syria have understandably garnered most of the headlines since the middle of last year. But the Islamic State’s rivals in the Al Nusrah Front, an official branch of al Qaeda, have been gaining ground over the past several months. And the DIA is concerned that Al Nusrah will continue to advance inside Syria and elsewhere, while also enabling senior al Qaeda operatives to plan attacks against the West. […]