Participating by remote connection from New York City, Herbert London talked about foreign investment in U.S. companies. He described the rise of foreign investment and the threat they may pose to U.S. security. According to the International Monetary Fund, foreign government investments in U.S. companies have quadrupled in size since 1990. Mr. London also had an op-ed piece in USA Today on the issue. He responded to telephone calls and electronic mail. He also responded to student telephone calls from the C-SPAN Campaign Bus in Athens, Georgia. The students were from Clarke Central High School.