common use. >> justice scalia's opinion used that phrase. i think the next sentence talked about dangerous and unusual weapons. the court in heller itself, the supreme court, struck down a d.c. ban on handguns. most handguns are semiautomatic. that's something that not everyone appreciates. most handguns are semiautomatic. the question came before us of semiautomatic rifles. the question was, can you distinguish as a matter of precedent -- again, this is all about precedent for me. trying to read exactly what the supreme court said. if you read the mcdonald case. i concluded it could not be distinguished as a matter of law. semiautomatic handguns from semiautomatic rifles. semiautomatic rifles are widely process