Not really -- remember the government employee to whom Atta paid a visit to get a government loan to buy a crop duster? He talked about putting a larger chemical tank in the plane, ranted about slitting people's throats, wanted to buy an aerial view of D.C. on the wall, returned disguised as someone else, and was thoroughly insulting to her because she was a woman.
What did she do? Nothing. She was concerned about helping him integrate into American society. I don't think she's atypical -- the owner of this New Jersey shop is.
As long as people like the government employee exist, they'll keep trying, no matter how stupid it may seem -- besides, there's more than enough people out there who'll do anything for money, and the terror slimes have plenty of that.