The Ukrainian HIMARS — or High Mobility Artillery Rocket System — can fire a missile barrage farther than its Russian equivalent. The weapons, obtained from the US, could be a game-changer. They’re also supposedly guided by secretive US assistance: intelligence on target locations. The World’s host Carol Hills speaks with Brian Taylor, a professor of political science at Syracuse University, about the impact of the HIMARS on the war, and Putin’s message to ordinary Russians.