the day care center spokesperson was "heartbroken"...  the little boy was shaken and thrown down -both of which have a real possibility of serious injury.  their site says they take infants as young as 6 weeks. shake a crabby crying 6 week old? scream in it's face? 
 the employee who witnessed the initial contact and did not report it  should get as much time as the monster lady.
 this is every parents nightmare. you drop your child off and hope they are decent people. i think a live feed of every room the kids are in should be available for any parent to call up to view during any point in the day. there are discrete ways to change a diaper...totally valid. make it mandatory for groups of 4 or more kids..