‘Troops bled from nose, vomited’: U.S. accused of using sonic weapon in Venezuela to capture Maduro Claims that the United States used a powerful, previously unseen weapon during its raid in Venezuela have triggered global attention after a dramatic eyewitness account surfaced online. A Venezuelan security guard alleged that U.S. forces deployed an intense, sound-like weapon that left soldiers bleeding from the nose, vomiting blood and unable to stand during the operation to capture Nicolás Madu