 A week after the assassination attempt, the director of the Secret Service is preparing to testify tomorrow about what went wrong. The Trump team says it has long requested more protection. Now, NPR's Amy Held reports the Secret Service is acknowledging there were times their own resources were not provided. Scrutiny of the Secret Service is growing after a gunman fired at Trump, injuring him, killing one person and injuring two others who attended the rally in Butler, Pennsylvania.