Open this photo in gallery: An Iranian man walks past national flags and banners at Tehran University on June 14, 2021, ahead of presidential elections.ATTA KENARE/Getty Images Canadian universities are being urged by a U.S. lobby group to reconsider their research ties to Iran, but some of them say doing so would hinder their independence and academic freedom. The group, United Against Nuclear Iran, or UANI, has spent the past year highlighting collaborations between academics at a number of top Canadian schools and their counterparts at technology-focused universities in Iran. Iranian universities have drawn Western scrutiny, and in some cases...