The National Security Agency intercepts hundreds of thousands of email address books every day from private Yahoo, Gmail, Facebook and Hotmail accounts. The agency analyzes contact lists to map relationships and connections among various foreign intelligence targets. The disclosure is the latest in a series of leaks of secret documents by Edward Snowden, who now lives in Russia. A representative of the national intelligence directors office said the agency only seeks information on valid targets, and doesnt spy on personal information of ordinary people.”]