[capydick]

“My greatest concern is that they could be doing anything,” said Peter Edge, the U.S. Immigration and Customs Enforcement official who oversees investigations into visa violators. “Some of them could be here to do us harm.”

And when ABC News followed up with Mr. Edge for additional comments, a U.S. Immigration and Customs Enforcement spokesperson told ABC News that Mr. Edge was reassigned to the border enforcement area at the Arctic Circle and was not available for further comment.