This is the reason why profiling is misguided. It creates two levels of scrutiny, a high level, and a low level, and the terrorists will simply groom operatives who can pass under the radar and on the low level, in other words jehadis who are from different ethnic backgrounds.
Black, mixed race, white, latino......who would be left to profile.
This profiling business was the name of the game before internet and before computers and before 2002. But in 2010 In this age & time everything that walks, talks, writes and every image that comes on to the screen get stored for 10bucks. Everyone who walks in to a grocery store in west is profiled and that goes to all, White, black, blue, yellow mixed race but they may closely scrutinize people that come from subcontinent with a Muslim name... specially Pakistan and Palestine