Homeland Secretary Janet Napolitano's statement:
"I am grateful to the passengers and crew aboard Northwest Flight 253 who reacted quickly and heroically to an incident that could have had tragic results. The Department of Homeland Security immediately put additional screening measures into place—for all domestic and international flights—to ensure the continued safety of the traveling public. We are also working closely with federal, state and local law enforcement on additional security measures, as well as our international partners on enhanced security at airports and on flights.
The American people should continue their planned holiday travel and, as always, be observant and aware of their surroundings and report any suspicious behavior or activity to law enforcement officials.
Passengers flying from international locations to U.S. destinations may notice additional security measures in place. These measures are designed to be unpredictable, so passengers should not expect to see the same thing everywhere. Due to the busy holiday travel season, both domestic and international travelers should allot extra time for check-in."