HOMELAND SECURITY NEWS WIRE – An American federal air marshal was placed in quarantine in Houston, Texas yesterday after being attacked Sunday night at the Lagos, Nigeria airport. The assailant wielded a syringe which contained an unknown substance, and was able to inject an unknown substance into the back of one of the air marshal’s arms. The marshal was able to board the United Airlines flight to Houston, where he was met by FBI agents and health workers from the Centers for Disease Control (CDC). Continue reading.