U.S. requires group to remove 3-D gun instructions from its website . Texas : Police say more testing is needed after questions are raised over suspected gun parts . Police said they found a laser printer along with a suspected 3-D plastic gun and trigger . Police are investigating a man arrested on suspicion of making gunpowder . A Texan student was made to take down online instructions for making a handgun this summer .
Texas : Police say more testing is needed after questions are raised over suspected gun parts . Police said they found a laser printer along with a suspected 3-D plastic gun and trigger . Police are investigating a man arrested on suspicion of making gunpowder . A Texan student was made to take down online instructions for making a handgun this summer .