"The news that the Central Intelligence Agency had been running a fake vaccination program in Pakistan first surfaced in 2011 and quickly ignited fears that the covert operation could compromise the global campaign to eradicate polio," Lynn Goldman, dean of the George Washington University School of Public Health and Health Services, and Michael Klag, dean of the Johns Hopkins Bloomberg School of Public Health, write in a Baltimore Sun opinion piece, noting a number of polio workers have been killed in the country over the last month. "[M]any worry that the violence [against polio workers] will continue unless the U.S. government takes steps to rebuild trust in Pakistan and ensure that the CIA can never again infiltrate efforts to fight global health problems that affect all of us, from residents of Karachi to people living here in Baltimore," they continue.