Unless you’re a comic-book villain or stuck in the 1980s, you’re probably aware that mustaches get a bum rap in the 21st century. They inspire accusatory T-shirts. They receive frequenty mockery, even when worn by movie stars. Things have become so bad for mustaches, The American Mustache Institute was founded (ironically, I think) to “fighting discrimination against mustached Americans.” This doesn’t scare away Marines, though. As this story out of Camp Leatherneck, Afghanistan, points out, they are an active participant in “Movember,” the month-long campaign to promote prostate cancer awareness by growing a fearsome ‘stache. For perspective’s sake, it’s worth pointing…