"I think it's important we have the local law enforcement really at different points at the airport to protect not only the perimeter, but also things that could happen through security checkpoint," he said.
He also talked about the importance of using special TSA VIPR teams, short for Visible Intermodal Prevention and Response. The teams are tasked with performing random, unpredictable baggage and security checks at transportation venues.
McCaul said Pistole wants to further the use of such teams at airports "to make sure American people are safe and the traveling public are safe when they go to our airports. I think that better coordination with local law enforcement should help tremendously.
"However, having said that, it's very difficult to stop these types of attacks. Anybody can show up, as we saw in the Navy Yard with the shotgun." He was referring to the September attack at the Navy Yard in Washington.
"It's almost like an open shopping mall," he said, "so very difficult to protect."