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About The Cover

June 1, 2009 Cover, Vol. 87, Issue 22

June 1, 2009 Cover, Vol. 87, Issue 22

Keepers Of The Gate

Advanced imaging and detection technologies help root out threats of terrorism in airports.

COVER: A Transportation Safety Agency officer tests a sample using ion-mobility spectrometry at Chicago O’Hare International Airport. Mitch Jacoby/C&EN

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Copyright © 2009 American Chemical Society

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