Asians thrown off flight

Police marched four Asian men off a plane after a passenger said their behavior made him nervous.

Why do we do this? These Gentlemen were taken off the plane just because they didn't speak English. From the story; "The men — in Islamic robes — were arguing in a foreign language and then all went to the toilet, one after the other." I guess needing to pee is a crime. I know everyone is hyper-nervous after 9/11 but we can't keep attacking people based just on appearance. What are we coming to as a society?