Problem is, those cameras - and the distance at which it probably shot - don’t show details very well. Light Arabs (even medium 1s) can look “white” on those things.
But, note how you get all kinds of backsliding equivocation if someone thought some perp was “black” or “latino”, etc - they make sure to tell you you can’t count on camera/eyewitness accounts from a distance in fleeting moments.
Someone thinks it’s a white guy? No such rationalization.
From the looks of this picture, he could be called the UniBrow Bomber: http://www.nypost.com/p/news/local/times_square_bomb_suspect_says_he_y3UdNXWIQCANGgDwg3TRjI