Security breach at Detroit airport leads to evacuation of two concourses

ROMULUS, Mich. - Two concourses at Detroit Metropolitan Airport were evacuated Wednesday after a passenger set off a metal detector at a security checkpoint, then walked away before he could be rescreened, an airport spokesman said. <br> <br> The security guard didn&#39;t immediately notice the man leave the area, spokesman Brian Lassaline said. He said he didn&#39;t know what the guard was doing at the time. <br> <br> Airport police were questioning the passenger Wednesday. Lassaline said officials believe the breach was unintentional. <br> <br> &#34;Just to err on the safe side, that whole area is evacuated,&#34; Lassaline said. He said a few flights were delayed, and 500 and 600 people were rescreened as a precaution. <br> <br> The checkpoint is operated by Huntleigh USA Corp., which contracts with Northwest, Lassaline said. <br> <br> <br>