Violence by environmental and animal rights extremists against U.S. drug makers has increased so much in recent years that it’s currently the FBI’s top domestic terrorism issue, a top agency official says. “There has been an increase in the use of incendiary devices as well as explosive devices,” said John Lewis, FBI deputy assistant director in charge of counterterrorism. “There’s a very clear indication that there’s no move to slow down or stop — in fact, just the opposite is true.” Full Story