The dailies today reported that in the wake of the London bombings, the U.S. government is warning that terrorists may be posing as vagrants to better survey their targets. To this end, federal employees were issued a letter to “be aware of ‘vagrants’ who seem out of place or unfamiliar.” Seeing as how the word “vagrant” means “a wanderer; a rover,” or “one who wanders from place to place,” how is a vagrant ever anything more than out of place or unfamiliar?