The reason is the health of guitarist Keith Richards.Now it looks like 2013, but don't hold your breath. Richards who is 68, suffered a brain hemorrhage in 2006 when he fell out of a tree and there are concerns about his health for a world tour. He told Rolling Stone, the band was not ready and next year would be "more realistic." The group went into the studio in December and played together for the first time since August 2007.
