Here is an interesting post on how laws and states have expanded the right to carry a concealed weapon. The graph is an animated gif so watch the chart change over the years.
This graph and article from The American Thinker:
March 31, 2010
Graph of the Day for March 31, 2010
"Americans overall are far less likely to be killed with a firearm than they were when it was much more difficult to obtain a concealed-weapons permit, according to statistics collected by the federal Centers for Disease Control... In the 1980s and '90s, as the concealed-carry movement gained steam, Americans were killed by others with guns at the rate of about 5.66 per 100,000 population. In this decade, the rate has fallen to just over 4.07 per 100,000, a 28 percent drop. The decline follows a fivefold increase in the number of "shall-issue" and unrestricted concealed-carry states from 1986 to 2006." Mike Stuckey, MSNBC.