TOKYO -- Earlier this month, 130 American lawmakers sent a letter to the Government Accountability Office requesting a study on the security implications of foreign investment in U.S. farms.
Lawmakers, experts voice concerns over potential for espionage or sabotage

A U.S. Air Force RQ-4 Global Hawk unmanned aircraft reconnaissance system at Grand Forks Air Force Base in North Dakota. Chinese company Fufeng Group has purchased 370 acres (150 hectares) of land near the base. © U.S. Air Force
TOKYO -- Earlier this month, 130 American lawmakers sent a letter to the Government Accountability Office requesting a study on the security implications of foreign investment in U.S. farms.