Cady Heron, protagonist of the iconic 2004 movie “Mean Girls,” is wrong about this one: “In girl world, Halloween is the one time of year a girl can dress like a total slut and no other girl can say anything about it.” Dressing up as a “sexy Native American,” for example, is the intersection...

Written by Liza Kolbasov Halloween is coming up. All over, party stores are popping up, stocked with the usual costumes: black cats, witches, ghosts, skeletons and... terrorists? Native Americans? Although Halloween was initially a religious holiday meant for remembering the dead, it has since evolved...