There are an estimated 11 million undocumented immigrants living in the United States, and it's a number you might have heard a lot about this week from Washington lawmakers.
Since the 1970s, Jeff Passel, now senior demographer at the Pew Hispanic Center, has been keeping tabs on a group that actively tries to stay off the radar. He says many actually do participate in the census count and other surveys.
Back in November, one of the Homeland Security's intelligence analysis centers in New Jersey was tasked with finding "commonalities" of mass shootings in the United States.
Today, the website Public Intelligence received an unclassified version of that report through a Freedom of Information Act request. The New Jersey "Fusion Center" looked at 29 mass shootings in the United States since 1999.
-- Nearly half of the shootings happened at a workplace.
Days after the Department of Homeland Security said computer users should remove the latest versions of its Java software, Oracle Corp. says it has fixed the flaw, in a new update released Monday. As we reported Friday, hacking groups included the Java 7 vulnerability in new "exploit kits" this year.