Eleventh Hour: Chlorine as both floor wax and dessert topping

An element so rarely gets singled out from the periodic table for its own star turn, and even less often when that element isn't even radioactive. But last night's episode of Eleventh Hour sent chlorine down the catwalk in two of its many guises. First up, Chlorine with a black hat, curly mustache and a tendency for evil laughter: Near the end of the episode, Special Agent Rachel Young and Special Scientist Jacob Hood were in a plumbing supply warehouse, hiding behind some shelves, watching drug dealers torture a guy for information. Young knew that, by FBI regs, they had to wait for backup before they could act. But the ever-impatient Hood grabbed a container of chlorine (presumably kept there to to sanitize pool water), threw it into a metal bucket, and contrived to light it on fire. The result was chlorine gas of the sort used in World War ...