constitutionali constitutionality, ultimately if you do it right they re totally legal. i think you ll still see some states using them. they do save lives, some say, because they slow people down and slow the traffic down. paul callan, many thanks. nice being with you, carol. it s a simple taco, but boy is its impact unbelievable. taco bell sells more than 1 million dorito loco tacos every single day and guess what, that taco is creating thousands of jobs. ahead, can a taco save america? students everywhere are looking for someone who can help them reach their full potential. with an advanced degree in education from capella university, you ll be better equipped to deal with today s issues and make an even greater impact. let s get started at capella.edu.