A preferred system for ensuring the safety of a glovebox can include a glovebox configured for handling a sensitive material and comprising a pair of ports adjacent to a working cavity; a pair of gloves connected to the pair of ports and extending into the working cavity; and a plug removably connectable to one of the pair of ports. In preferred variations, the plug can include a protective material, a removable handle, and a shielding cavity. In alternative variations, the plug can also include a tamper indicating device to ensure that the plug, once engaged into the port, is not removed without proper authority or permission.
STATEMENT REGARDING FEDERAL RIGHTS
 The United States government has rights in this invention pursuant to Contract No. DE-AC52-06NA25396 between the United States Department of Energy and Los Alamos National Security, LLC for the operation of Los Alamos National Laboratory.