Jason Emery over on FireEngineering.com put together a very thorough and interesting article on how to prepare the 2010 Prius for vehicle extrication in the unfortunate event that it may be needed. This isn't a "OMG! Don't touch a hybrid because you WILL DIE!" kind of article. In fact, it's totally the opposite. The article takes an in-depth look at how to make the Prius as safe as possible while responding to an emergency situation. It even goes into how to remove the roof off of a 2010 Prius with a solar panel. New Vehicle Extrication: 2010 Toyota Prius This is also a worthwhile read: Hybrid Vehicles: Separating Fact from Fiction
This is an excellent article presented by someone who did a fair amount of research to present this accurately.