In Atlanta, security guard with gun and criminal record allowed in elevator with Obama

The incident occurred as Obama appeared at the Centers for Disease Control and Prevention to discuss the U.S. response to the Ebola crisis.

The contractor did not comply when Secret Service agents asked him to stop using a phone camera to videotape the president in the elevator, according to the people familiar with the incident.

Agents questioned him, and used a database check to learn of his criminal history.

When a supervisor from the private security firm approached and learned of the agents' concern, the contractor was fired on the spot and agreed to turn over his gun — surprising agents, who had not realized he was armed during his encounter with Obama.