Firearms and crime

Senior analyst for the Violence Policy Center Tom Diaz says one of the weapons found at the site of the Newtown, Conn. shooting was a variant of a type of gun developed for troops in Vietnam.

Arizona's gun laws, among the most lenient in the country, allowed Jared Lee Loughner to conceal and carry his firearm without a permit, explains Washington Post reporter James Grimaldi, who wrote a piece Sunday about Arizona's lax gun laws and Saturday's Tuscon shooting rampage.

Journalist Erik Larson's article, "The Story of a Gun," is the cover story on this month's issue of "The Atlantic." It tells the tale of what happens with a gun, beginning with the maker, to the dealer, and to the murderer who uses it. Larson claims there is a de facto conspiracy of gun dealers, gun manufacturers, and federal regulators, "which makes guns all too easy to come by and virtually assures their eventual use in the bedrooms, alleys, and school yards of America."

Counselor Alvin Cater founded the Al Carter Foundation at Cabrini Green, a housing project in Chicago of 6000 people. The foundation is a hands-on intervention program that reaches youth by going into the streets, and makes referrals to the 13 human service agencies within Cabini Green. He tells Terry about the recent truce brokered among gangs at the project, and the effect recent gun violence has had on the community.