The Department of Homeland Security has thrown up a Coast Guard anti-terror watch around the port of Houston just in time for the Super Bowl. But for some reason the feds decline to name the object of the said "temporary security zone," which is quite obviously the friggin' football game.
The zone triggers strict oversight of "Certain Dangerous Cargoes" which include explosives, poisonous gas, poisonous liquid, radioactive material, and flammable gases or liquids. Ships with such cargo must phone or fax ahead to get a Coast Guard escort before entering the Houston ship channel.
Heads or tails?