"Asher Karni, an Israeli who lives in South Africa, was arrested in Denver earlier this month on charges that he had illegally exported the devices to Pakistan without a license. In court documents, the American authorities charge that Mr. Karni, 50, was at the center of a global operation that used front companies and false billing records to route the trigger devices from a private manufacturer in Salem, Mass., to South Africa, the United Arab Emirates and ultimately Pakistan. "