mission creep

But “Iran likely has its own limits in terms of mission creep in Syria,” says Vira.

Typically, American hubris has meant overreaching, and "mission creep" has historically been synonymous with disaster.

Think military advisors, the Gulf of Tonkin Resolution and mission creep.

But if there is anything to be learned from America's use of drones abroad, it is that mission creep follows.

Not afraid of mission creep are the two leading lights of the genre, Courtney Love and Charlie Sheen.