http://freedomhouse.org/religion/news/bn2005/bn-2005-01-28.htm The documents stress that when Muslims are in the lands of the unbelievers, they must behave as if on a mission behind enemy lines. Either they are there to acquire new knowledge and make money to be later employed in the jihad against the infidels, or they are there to proselytize the infidels until at least some convert to Islam. Any other reason for lingering among the unbelievers in their lands is illegitimate.
The Whabbi sect of islam is supported by the Saudi govt. To make a really long story short, the Saudi royal family was really enjoying everything the west had to offer in the 70's and 80's--sex, booze, drugs etc and the ruling Whabbi mullahs knew it. They used this information to blackmail the royal family, in return for quiet, they required 100 of millions of $$ to build and fund mosquesand schools in the US and Europe. They (Whabbi sect ONLY) have secret police status in the nation and can do most anything they like.
They sent thousands of democracy hating imams to the US, to destroy us form the inside.
The school in VA (possible presidential assasin) is one of these schools. Although there are quite a few in the DC area.