Check out the source of this report at the bottom.

CNN) -- These are some of the facts from tonight's broadcast that you might find interesting.

ICE (U.S. Immigration and Customs Enforcement) conducted a threat assessment survey of all field offices:

"The results of the assessment showed that most major metropolitan areas were experiencing a surge in gang activity. Additionally, the survey showed that membership of these violent transnational gangs was comprised largely of foreign-born nationals."

Source: ICE "Operation Community Shield" Fact Sheet June 6, 2007

• Gang members in the United States: 800,000
• State and local police in the United States: 708,000

Source: Sen. Dianne Feinstein (D-California); hearing testimony June 5, 2007