Foreign nationals

I guess political correctness prevent these issues being debated in a clear, concise and non-racist manner; still, here's some statistics to think about.

Story:
More than 9,000 sex offenders have been arrested by Immigration and Customs Enforcement officials through a series of stings called Operation Predator in three years of operation, a 2006 Department of Homeland Security Report says. But some experts are wondering if the efforts are enough to protect innocent American children from being preyed on by returning criminal alien sex offenders.

Foreign nationals account for roughly 85 percent of child sex offenders arrested by the operation, which was launched by Homeland Security Secretary Tom Ridge in July 2003, officials say. And as media previously has reported, authorities also have linked illegal aliens to a wave of gang-rapes across the U.S.

Deborah Schurman-Kauflin, a researcher of violent crimes and criminal profiler who consults with FBI, state and local police, said, "Illegal immigrants who commit sex crimes first cross the U.S. border illegally, then gradually commit worse crimes and are continually released back into society or deported. Those who were deported simply returned illegally again. There is a clear pattern of criminal escalation. From misdemeanors such as assault or DUI, to drug offenses, illegal immigrants who commit sex crimes break U.S. laws repeatedly."

Source