Lately TV has been showing Islamist terrorists waving a black flag with Arabic inscriptions. When did the flag go black? Used to be, the flag of Islam was green with Arabic inscriptions.
Here in the west, a black flag is an ill omen. The Jolly Roger was a skull and crossbones on an all black field. Black Flag used to be a brand of insecticide. I don't think the Islamists consulted a PR expert when they adopted a black flag.