It’s a global game of hide and seek for admitted NSA leaker Edward Snowden, who is trying to outrun and outsmart U.S. authorities and is stirring up international tensions along the way.

The 30-year-old former government contractor, who has been charged with espionage, left Hong Kong on Sunday for Russia’s Sheremetyevo International Airport. His whereabouts are unknown.

Fair trial impossible in U.S., Snowden tells Ecuador in asylum request

Snowden had been lying low in Hong Kong since his interview with The Guardian, in which he admittedly revealed the existence of secret National Security Agency surveillance programs.

Hong Kong allowed him to leave for Moscow, despite a U.S. request for extradition. Snowden was said to be heading for Cuba on Monday, but it is unclear whether or not be boarded a flight.

He is currently seeking asylum in several countries, including Ecuador and Iceland, and the U.S. is reaching out to a number of countries for help in trying to catch him and prosecute him.

Why would Snowden head for Ecuador?

Tonight at 6 p.m. ET, Wolf Blitzer anchors a special report, “The Situation Room: NSA Leaker on the Run.” CNN correspondents are around the world covering the manhunt and the diplomatic tug of war over his fate, including Barbara Starr at the Pentagon, Jill Dougherty at the State Department, Paula Newton in Ecuador, David McKenzie in Beijing and Jessica Yellin at the White House.

We’ll also bring you CNN’s Elise Labott interview with Secretary of State John Kerry on U.S efforts to bring Snowden back to the United States, and CNN’s Christiana Amanpour, Fareed Zakaria, Tom Fuentes and Jeffrey Toobin join Wolf for full analysis.

Click below to watch Wolf Blitzer preview the show on Instagram