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ALBUQUERQUE, New Mexico – A second Chinese national accused in New Mexico of trying to smuggle sensors made for the U.S. military has pleaded guilty to conspiring to violate the Arms Export Control Act.

The Des Moines Register reports Wentong Cai pleaded guilty Tuesday in federal court in Albuquerque. His guilty plea followed that of a cousin, Bo Cai.

Authorities say the men met in October 2013 with an undercover agent about buying the sensors made in New Mexico for military guidance systems.

At the time, Wentong Cai was a graduate student at Iowa State University studying microbiology and Bo Cai was employed by a technology company in China.

Bo Cai faces 20 years in prison while Wentong Cai’s plea agreement calls for an 18-month sentence.