<p>NEW ORLEANS, Louisiana (AP) -- A concourse at the New Orleans international airport was evacuated for nearly two hours Sunday after a passenger was found with a knife.</p>
<p>The man apparently was unfamiliar with airport security rules and meant no harm, airport spokeswoman Michelle Duffourc said. The utility knife was discovered as the man went through screening at the gate before boarding United flight 1482 to Washington, said federal Department of Transportation spokesman Roland Herwig.</p>