Russian agents infiltrated U.S. society, charges say

They sometimes worked in pairs and pretended to be married so they could blend in as the couple next door while working as spies in a throwback to the Cold War, complete with fake identities, invisible ink, coded radio transmissions and encrypted data to avoid detection, authorities say.

Assistant U.S. Attorney Michael Farbiarz, speaking Monday in federal court in Manhattan, called the allegations against 10 people living in the Northeast "the tip of the iceberg" of a conspiracy of Russia's intelligence service, the SVR, to collect inside U.S. information, the biggest such bust in recent years...