u.s. international trade commission report. more recent number from the commission on the theft of american intellectual property, this report commissioned last year has a much higher number stating up to $600 billion in ip theft is possible. so experts say the motivation to level the playing field is undersndable, but what gets complicated is that so many american businesses are interconnected. for example, here are seven big tech american companies that source half of their products and components from china. they are names you know well, they are names that are in a lot of tech portfolios, hp, ibm, dell, cisco, unisys, microsoft, intel. s&p 500 tech companies as a group get about 60% of their revenues from overseas. that is the highest foreign exposure of any be other sector in the s&p 500. even apple has sold more iphones in china in the last three years than in the u.s. in fact, apple gets about 20% of its annual revenue from china. the chinese president, of course, saying china will punch back, we'll not be forced to, quo