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how long will it take for the u.s. to catch up? cbss meg oliver reports, its easier said than done. >> reporter: how complex is it to make these microchips? >> it is extremely complex. >> duncan: and moving on, tennis great serena williams serves up a surprise announcement, saying shes ready to focus on her family. >> i cant do this forever. sometimes you just want to try your best tohe ments with norah odon evening news" from the nations capital. >> duncan: good evening, and thank you...