How many cars would you have to take away from California's crowded roadway to rid them of gridlock? A computer similation supplied the answer: four percent, or four out of a hundred. The study provided inspiration for actor Tom Hanks in a remarkable speech at Vassar College's graduation ceremony on May 22, 2005. Here is Tom Hanks' speech. Read it. Print it out. Pass it on. Share it with others...   more »