Detroit's police chief recently made waves when he advocated people arm themselves for self-defense. In this video, economist John R. Lott, author of More Guns, Less Crime, explains why concealed carry is the most sensible position. Source: CNN Blogs
My recommended resources for concealed carry:
The Gun Digest Book of Concealed Carry, 2nd Edition
The Gun Digest Book of Combat Handgunnery
Armed: The Essential Guide to Concealed Carry
Find more resources at gundigeststore.com/tactical