By the time government "workers" noticed the error, 175 unvetted immigrants were granted US citizenship along with all the constitutional rights that come with it, such as those granted by the Second Amendment.
Since the screwup was found, naturalization ceremonies have been stopped and government officers of the U.S. Citizenship and Immigration Services have been banned from approving new citizenship applications because terrorists can be among them.
The screwup was caused by a computer code malfunction and was made public by House Judiciary Committee Chairman Bob Goodlatte (whose name would make him a 'natural' barista). He said the problem was disclosed in an internal email to which he had access.
This is the government so it should come as no surprise that people responsible for protecting our homeland are about as competent as Hillary Clinton discussing 'fake news.'
Earlier in the year, hundreds of criminals were granted citizenship because Homeland [In]Security had only checked their fingerprints through their limited database and not with the thousands of fingerprints that are still only on paper and need to be put into the system.
You can't make this stuff up.