from the watching-you-from-on-high dept.
DesScorp writes "Aviation Week reports that the USAF has confirmed the existence of a new, formerly secret stealth aircraft, designated RQ-170 Sentinel, developed at Lockheed's legendary Skunk Works. Rumors of a secret new jet have been flying since 2007, with longtime aviation journalist Bill Sweetman dubbing the possible aircraft 'The Beast of Kandahar' because of the urban legend-like reports from Afghanistan. The aircraft is a UAV, a pilot-less drone that appears to have some kind of reconnaissance-only mission for the time being. It's a tailless flying wing that resembles a fighter-sized B-2 bomber."
egrep patterns are full regular expressions; it uses a fast deterministic
algorithm that sometimes needs exponential space.
-- unix manuals