Are gun owners more likely to kill themselves? Two doctors who think so are asking lawmakers and psychologists to take a new look at the risks of firearms. Matthew Miller of the Harvard School of Public Health studied four years of data in the US and found higher rates of suicides involving firearms in states with more gun owners — up to four times higher for men and eight times higher for women. The numbers of suicides not involving firearms, on the other hand, were... (GunPolicy.org)