Evidence is mounting that Russia and the United States are preparing for the largest spy swap since the Cold War. In Moscow, riot police on Thursday secured the perimeter of a prison thought to be holding convicted spies for the West as convoy of armored vehicles arrived at the compound.

In New York, a federal court is set to decide the fate of ten people arrested and suspected of spying for Russia. Lawyers say a resolution could be reached as early as Thursday. Security analyst Pavel Felgenhauer told The Associated Press he is sure a Cold War-style spy exchange is imminent. He says Moscow's political moves since the United States charged the 10 people with working as unregistered Russian government agents was a "de facto acknowledgment" of their guilt.