Two Yemen-based militants dressed as women, one of whom was a former Guantánamo prisoner, were intercepted at a Saudi checkpoint last week.
UN official John Holmes visits Yemen Thursday to highlight thehumanitarian crisis as concerns grow about a potential haven for AlQaeda.
The debate over sending more US troops frames a larger clash over counterinsurgency strategy as the new template for war.
Sgt. Scott Weaver, of the Queen's Royal Lancers, is seen launching a Black Hornet Nano unmanned air vehicle from a compound in Afghanistan. British troops in Afghanistan are the first to use the small surveillance helicopters, which measure 10 by 2.5 centimeters and are equipped with a tiny camera that gives troops video and still images.