Chinese nationals, who sometimes posed as tourists, accessed U.S. military bases and other sensitive sites around 100 times in recent years, according to an exclusive report by The Wall Street Journal.
The newspaper cited U.S. officials, who described the incidents as potential forms of espionage.
Last year, the U.S. Department of Defense, FBI, and other agencies held a review to try to curb the frequency of these breaches, which involved unauthorized entries into US military bases and other federal sites, the newspaper reported.
