"There are approximately 7.7 million illegal aliens employed in U.S. jobs in 2008."
(NumbersUSA).
"25-50% of all gangsters arrested in the criminal gang suppression efforts in northern and western Virginia are estimated to be illegal immigrants."
(Study for Immigration Studies).
"Gang investigators in Virginia estimate that 90% of the members of MS-13, the most notorious immigrant gang, are illegal immigrants."
(Center for Immigration Studies).
"In October 2008, the illegal immigrant population stood at 11.9 million according to the Pew Hispanic Center."
(NumbersUSA).