Silicon Valley is suffering a brain drain that is just going to keep getting worse. Historically the valley has been the beneficiary of brain drains from around the world. The diaspora of China, India, Russia, etc, all came to sunny California to start their companies and make their fortunes. Companies like Juniper, Q-Logic, Exodus , and Silicon Labs are among the hundreds of companies that have generated billions in sales and wealth started by the best and brightest from around the world. Now some of those great minds are packing up and heading home. I spent the first week of...