• Kansas City International Airport was evacuated due to a bomb threat.
• A two-hour investigation found no credible threat.
• The FBI and law enforcement partners swept the terminal and parking garage.
• Normal operations resumed after the incident.

This incident may indicate the need for enhanced security measures at US airports. The swift response by the FBI and law enforcement partners suggests a high level of preparedness, which could reassure passengers and airport staff. The investigation's outcome may also indicate that the threat was not credible, which could reduce concerns about airport security.