A checked bag at Newark Liberty International Airport tripped alarms . The unidentified woman , from Union , New Jersey , missed her original flight to San Francisco but was allowed to rebook her flight later -- without the weapons , the TSA said . # ##mine casings were found in the bag , the officials said . The plane was going to an explosives demonstration , officials said .
A checked bag at Newark Liberty International Airport tripped alarms . # ##mine casings were found in the bag , the officials said . The plane was going to an explosives demonstration , officials said .