Shortly after the terrorist attack that left 51 dead in Christchurch, New Zealand earlier this year, Prime Minster Jacinda Ardern vowed to ban all semi-automatic rifles. The firearms that were used in the attack were legally obtained but illegally modified. The "assault weapons ban" was finalized and Friday was the last day for New Zealanders to hand over the newly banned firearms as part of a so-called "buyback program." The government set aside $110 million to compensate gun owners for their firearms. In total, the government collected 47,000 firearms. An accounting firm the government hired determined that the number of...