Pipe Bomber Hits Bio Lab: Feds Probe Attack In Watertown

A pipe bomb ripped through a biotech research lab in Watertown early yesterday, igniting fears of terrorism as federal agents combed through the debris in a search for evidence, law enforcement sources said. The bomb exploded in the darkened lab of Amaranth Bio Inc. at 3:40 a.m., blasting out windows from floor to ceiling in a Pleasant Street office building that houses a half-dozen companies. ``There's no reason to believe it's a terrorist act, but there is reason to believe that someone wanted to do harm to that company,'' said a source familiar with the investigation. ``They have information that might lead them to someone they want to talk to.'' No one was injured in the explosion, but law enforcement officials said the bomb caused extensive damage to the laboratory. Amaranth Bio, which moved to Watertown less than six months ago, is involved in cutting-edge cell research focused on organ regeneration.