He had also served as the chief of staff for the Transportation Security Administration .
Basham had 28 years of experience as a law enforcement manager , including serving as the head of the Secret Service and the Federal Law Enforcement Training Center .
Basham had also served as the chief of staff for the Transportation Security Administration .
Basham had 28 years of experience as a law enforcement manager , including serving as the head of the Secret Service and the Federal Law Enforcement Training Center .