When President Donald Trump signed an executive order last month suspending the U.S. refugee program in order to implement more “extreme vetting,” PBS NewsHour viewers asked us what the current vetting process is.

By Larisa Epatko

A large number of sub-Cabinet positions across the federal government have yet to be filled, as the Obama administration carefully vets candidates for the Treasury Department and other agencies. A public service professor and New York Times reporter give an…