Two opposing theories around the downing of UIA Flight 752

Western intelligence suggests an Iranian missile shot down Ukraine International Airlines Flight 752, but the Iranian government insists that’s impossible. Global National’s Dawna Friesen speaks with Insight Threat Intelligence president Jessica Davis, a former CSIS strategic analyst, about what kind of investigative tools Western nations have, why this intelligence isn’t being made public, and the skepticism on both sides since the U.S. and Iran are sworn enemies.

• Iran denies shooting down Ukrainian plane, wants Canada, U.S. to release data