Border Patrol Chief Michael Fisher said today that he will never “feel comfortable” telling Congress that the border has been secured or that the government has a “scientific method” for tracking how many people attempt to enter the country illegally.

“When there are no more bad people looking to come into this country illegally between the ports of entry,” Fisher told the Senate Homeland Security and Government Affairs Committee. “That’s the only time that I would feel comfortable [enough] to come before this committee and others and suggest that the border is definitively secured. It is not an easy process.”