Dmitry Medvedev dining in San Francisco tonight Russian President Dmitry Medvedev is on a friendly visit to the Bay Area before flying across the country to meet with President Barack Obama, and he comes in peace. Which must be why he brought along the flagship of the Russian Navy's Pacific Fleet, the nuclear-capable missile cruiser Varyag. Makes total sense. Medvedev will be dining with Gov. Arnold Schwarzenegger and former Secretary of State George Schultz Tuesday night. On Wednesday, he'll be visiting technology companies including Twitter, Apple, Google and Cisco Systems, in part to promote an "innovation center" modeled on Silicon...