secrets related to apple's self-driving car technology or in car technology. the fbi is very focused on this potential threat even though many of the people who are engaging in this espionage are just ordinary people, and the tactics the chinese government uses here are very sophisticated. according to an expert on national security that i spoke to, he said the chinese use all the traditional tools, sex, money, ego, and the most effective are to squeeze people by threatening family back in china or to offer people funding if they spy before they go back. we haven't put enough effort into stopping them. this is a longstanding problem, and the fbi is really desperate to try to get its arms around it. and it's really warning companies out in silicon valley about this threat that they are targets. new england bracing for something they haven't seen in 30 years. that's next.