I get offered to do stuff where the money's nice but it's not something I want to do - I get offered a lot of commercials too.
Adult stem cells are also problematic, as they are difficult to identify, purify and grow, and simply may not exist for certain diseased tissues that need to be replaced.
We're going to hear a lot of spirited discussion about the President's plan in the next few days and weeks and that's fine as long as everyone comes ready to talk and not just snipe, complain and argue.