Bruce Shapiro's America: backlash over Minnesota shootings, Mark Carney's Davos moment, and the tiny world of springtails

Donald Trump will send his border czar to Minnesota and says his administration is "reviewing everything" in relation to the shooting death of nurse, Alex Pretti, by federal agents in Minneapolis. Bruce Shapiro looks at the political backlash in the US, and what it means for the Trump administration. Plus, Canadian Prime Minister Mark Carney is losing faith in the International rules based order - his speech at the World Economic Forum in Davos went viral. And the tiniest creatures you've never heard of- springtails.