WWI artillery shells found in luggage at O'Hare

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    This Monday, April 7, 2014 photo provided by the Transportation Security Administration (TSA) shows two World War I artillery shells discovered by baggage screeners in checked luggage that arrived on a flight from London at Chicago's O'Hare International Airport. The TSA says the bags belonged to a 16-year-old and a 17-year-old who were returning from a school field trip to Europe. A bomb disposal crew determined the shells were inert and no one was ever in danger. The teens were questioned then allowed to travel onward. They weren't charged. (AP Photo/Transportation Security Administration)

    CHICAGO (AP) — Baggage screeners at Chicago's O'Hare International Airport have discovered two World War I artillery shells in checked luggage that arrived on a flight from London.

    The Transportation Security Administration says the bags belonged to a 16-year-old and a 17-year-old who were returning from a school field trip to Europe.

    TSA spokesman Jim McKinney says a bomb disposal crew determined the shells were inert and no one was ever in danger.

    The teens told law enforcement they obtained the shells at a French World War I artillery range. It was not clear how.

    TSA explosives experts believe they are French 75 mm shells.

    They were seized Monday evening while the teens were transferring to a flight to Seattle.

    The teens were questioned then allowed to travel onward. They weren't charged.