James Holmes, the alleged shooter in the massacre in Aurora, Colorado, reportedly amassed his huge arsenal with relative ease. Some of these weapons were illegal as recently as eight years ago. Legislation now before Congress would once again make illegal, if not the guns themselves, at least the high-capacity magazines that allow bullets to be fired rapidly without stopping to reload. Holmes bought most of his weaponry within recent months, we are told. Perhaps, if... (GunPolicy.org)