WASHINGTON (AP) — The Navy admiral nominated to be the next head of the troubled National Security Agency told senators Tuesday that if the U.S. government turns over the bulk collection of telephone data to an independent third party, it could result in higher costs and delays identifying potential threats.

Vice Adm. Mike Rogers, who also has been nominated to take over U.S. Cyber Command, provided little new insight into how he would handle planned reforms of the NSA’s surveillance programs.