There's significance behind the choice of California as the venue for the U.S.-China summit between presidents Barack Obama and Xi Jinping. The state is home to more than a third of the China-born population in the U.S., and Chinese-backed investment groups have been pouring billions of dollars into real estate property and private companies based in California. At the same time, exports of California goods to China are surging, and state leaders are bullish about capitalizing on new markets there.

News reports have been revealing massive data mining by the National Security Agency of American Internet and social media companies, including Microsoft, Apple, Facebook and Google. It was also reported that the agency is collecting Verizon phone records of millions of U.S. citizens. For more, Renee Montagne talks to Glenn Greenwald, the reporter who co-wrote the stories for the British newspaper The Guardian.