Reuters reports: "U.S. President Barack Obama met Friday with former Soviet leader Mikhail Gorbachev in a prelude to Obama's first scheduled meeting with Russian President Dmitry Medvedev on April 1 in London... The unscheduled meeting took place in the White House offices of Vice President Joseph Biden, said Obama spokesman Robert Gibbs, who described Biden and Gorbachev as considering strategies making reductions to the two nations' nuclear arsenals."
But the real fun started when Obama dropped in on the meeting. "The president tends to roam around the larger (White) House and sometimes walks into meetings that weren't previously on his schedule," Gibbs told reporters.
We can just see it. "Hey Joe, about your TPS report...Oh, Gorbachev?"