Canada is deploying up to 150 Canadian Armed Forces members to Poland to help Ukrainian refugees. The three components of this mission, and how long troops could be on it. Russian President Vladimir Putin's prized warship, the Moskva, has sunk. The differing claims about what brought down the flagship of the Russian Black Sea Fleet, and why it's a big blow to Moscow. At the public inquiry into the 2020 Nova Scotia massacre, RCMP constables Craig Hubley and Ben MacLeod gave powerful testimony about how they ended the gunman's killing spree, and the memories that still haunt them. Also, a look at the punishing storm pummelling the Prairies and wrecking Easter plans. Plus, a controversial one-way ticket called cruel: the United Kingdom's multi-million dollar plan to send asylum seekers to Rwanda. And #HostileTakeover: why billionaire Elon Musk wants to buy and change Twitter.