"The .40-caliber semi-automatic handgun was among the man’s carry-on items as he entered one of the airport checkpoints," the authority's Joseph Pentangelo told Daily Voice.
The checkpoint X-ray machine detected the pistol, Port Authority police were summoned and the area was shut down, Pentangelo said.
PAPD officers arrested 30-year-old Christopher C. Brown of Morrisville, PA and seized the gun, he said.
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