For a few years now we’ve been telling parents that keeping kids rear facing as long as possible is the safest. This week the American Academy of Pediatrics made it official and changed their policy statement to say that children should be rear facing until 2 and in a booster until 8. While this can be hard to swallow, it’s a good idea. This video gives an idea of what can happen in a crash.
This short article gives a great overview of why the change was made. Basically, infant and toddlers have big heads compared to the rest of their body, and it is much safer for them to be rear facing.