Today on CNN 10, handwashing can make or break a restaurant as food workers can be a critical part of preventing foodborne illnesses and outbreaks like Salmonella and E. coli. One New York tech start up has developed a hand hygiene device to better protect employees and customers by detecting any residual contaminant after handwashing. Then, college campus unrest has continued to dominate universities across the US and UCLA has faced violent confrontations between pro-Palestinian and pro-Israeli protestors. All that and more on this episode of CNN 10.