An internal Homeland Security document shows that the agency is aware of pro-amnesty Americants posing as DREAMer illegal aliens to demonstrate the broken system.
http://www.breitbart.com/Big-Government/2013/09/17/Exclusive-Internal-DHS-document-Pro-amnesty-Americans-posing-as-illegal-minors-in-attempt-to-discredit-current-immigration-system
