The old phrase that something is so simple "even a child can do it" now applies to saving lives.  Mark Stevens with Tualatin Valley Fire and Rescue told a State Senate committee how easy it is to do "hands only" CPR.  Stevens was testifying in favor of a bill to make learning "hands-only" CPR a requirement to graduate from high school.  The bill had its first public hearing Thursday and has strong support from first responders around the state.