Atcha Bakery and Cafe was closed for about an hour Tuesday, an employee confirmed when asked about a potential investigation.A man called The Daily Reveille’s newsroom Tuesday afternoon and said he had seen men with badges that said, “Federal Investigator,” in the restaurant.Another Atcha employee said he could not comment because the restaurant’s owner, Abed Mubarak, was not present.Mubarak’s wife, Sawsan, who was reached by telephone at her home, said her husband would be out of town for three days, but that “everything was fine,” and there were “no problems.”U.S. Attorney David Dugas said he could neither confirm nor deny any investigation.