we have done a few articles on shaken baby syndrome here. i happened across his article which explains what exactly occurs when you shake a baby and why it can cause so many problems, up to and including death.
the point that i like from the article is that every parent needs to have a plan in place for what to do when their baby starts crying. think about what you would do if you have had just the worst and most stressful day of your life and you come home and your baby will not stop crying. a parent always needs to be sure that they can cope and safely 