Something has affected david and that's the reason he is the way he is. but it isn't vaccines. we need to now put this to bed. >> the shame of this is that what this does is divert resources and people's time in autism research towards something that's not the answer. we've wasted a whole lot of time chasing down vaccine theories that have been proven to be wrong. >> money that could have gone toward other research, possibly toward a cure. the bottom line question remains, if you are the parent after young child, should you vaccinate? several doctors i spoke to, including the chief of child ps...