The U.S. Marshals Service lost track of two former participants in the federal Witness Security Program "identified as known or suspected terrorists," according to the public summary of an interim Justice Department Inspector General's report obtained by CNN.
The Marshals Service has concluded that "one individual was and the other individual was believed to be residing outside of the United States," according to the summary.
A Justice Department official said in response to follow up questions about the matter by reporters on Thursday that the pair had left the program years ago and had been accounted for.
It was not clear when or for how long the Marshals Service lost track of them.