Rowe suggests Secret Service will revert to using radiopublished at 16:44 British Summer Time 30 July
Bernd Debusmann Jr
Reporting from Capitol Hill
One of the questions that Rowe has faced from lawmakers is how information was communicated at the Butler rally, both internally within the Secret Service and between the agency and local law enforcement.
Much of the communications, Rowe says, took place via text messaging.
"It was great there was a text chain," he says. "But that communication needs to go over the net. It needs to go over a radio channel so that everyone has situational awareness of it."
"I want people using the radio," he adds. "We have to be able to make sure that whenever we come across a situation that everyone has situational awareness of this."