From the New York Times, December 23, 2008:
"For years, the gun lobby has defeated new gun control laws partly by arguing that stronger laws do not deter crime. A study prepared by Mayors Against Illegal Guns, a bipartisan group headed by Mayor Michael Bloomberg of New York and Mayor Thomas Menino of Boston, should finally put that myth to rest.
"The study analyzed trace data for guns used in connection with crimes during 2007. The data reveal a strong correlation between weak state gun laws and higher rates of in-state murders, police slayings and sales of guns used in crimes in other states."
Read the full editorial.