When borders do reopen, what should that look like? Who should be allowed in? What public health protocols and benchmarks should Canada meet before we even consider it? Dr. Vivek Goel, professor at the University of Toronto's Dalla Lana School of Public Health and member of the federal government's COVID Immunity Task Force, talks to Adrian Cheung about the research of reopening borders and why a "blanket ban" on all visitors might not be a long-term answer.