Reporter: Dave Andreesen
Date: August 14, 2012

Exeter Hospital says an Associated Press account of the suspect's work history highlights the need for mandatory disclosure by health care providers about problem workers. The hospital at the center of the investigation says there should be a national registry system covering all workers providing patient care, and hospitals that share information about former worker misconduct should be protected from employment lawsuits.
David Kwiatkowski was arrested in July and charged with tampering with needles and infecting at least 31 people with Hepatitis C. Records and interviews conducted by The Associated Press show that authorities could have halted Kwiatkowski's career after he was fired in Pittsburgh in 2008 and Arizona in 2010. But his own lies, weak regulation and poor communication allowed him to continue working.