"Silicon Valley is no longer a place; it's a concept that is being duplicated, or trying to be duplicated, all over the world," says the Bay Area's legendary lawyer Larry Sonsini in this video interview with The Deal magazine. As the chairman of Wilson Sonsini Goodrich & Rosati PC, Sonsini has spent three and a half decades advising Bay Area technology companies, including Apple Inc., Google Inc. and 3Par Inc. For more perspectives on how Silicon Valley's legal landscape has evolved along with the tech industry, see "Silicon law" by David Marcus in the current issue of The Deal magazine. - Mary Kathleen Flynn