The gov't ran drop-tests on the 1911 in the 1920's, after a sailor was killed by a round fired from a dropped pistol. They concluded that the gun had to land precisely on its muzzle, from a height of 20 feet, on a non-resilient surface, for the firing pin to overcome the FP spring and hit the primer with enough force to discharge the gun. Another test, conducted separately, showed that the 1911 is very unlikely to land on its muzzle if dropped. Colt was building guns with FP safeties in the '30's, but didn't continue their use after WWII (and millions of satisfied G.I.'s), until the widespread appearance of the product liability lawyer in the '80's. Properly handled and maintained, the 1911 is safe.