WASHINGTON — It’s not just curiosity killing the cat anymore — it could be the Army. The Army Medical Research and Development Command has quietly allowed shooting cats and dogs for wound experiments despite a 1983 Defense Department ban on the practice, according to a policy update obtained by The Post. While the change was made as early as 2020, it’s being publicized for the first time after the Army command turned aside a bid by People for the Ethical Treatment of Animals to find out how many such experiments had been conducted since the switch.