Robbie Robertson was once asked why he waited 11 years after the breakup of the Band to release a solo project, and he replied, "I wasn't so sure I had something to say." One can hear a bit of this thinking in Robertson's self-titled solo debut; it's obvious that he didn't care to revisit the country- and blues-flavored roots rock that had been his bread and butter with the Band, and at the same time Robertson seemed determined to make an album that had something important to say, and could stand alongside his legendary earlier work…