“One worried mother walked into the Homestead police station yesterday to turn in two handguns. She said her 17-year-old son had somehow gotten hold of the weapons. Her job was to take them away — forever. She did it through the 12th annual gun buyback program organized by Goods for Guns of Allegheny County and the Pittsburgh Housing Authority. The woman left with $100 in Shop ‘n Save grocery certificates — $50 for each handgun — and the hope that her teenager had averted trouble.”