In hour one of Here & Now’s March 7, 2018 full broadcast, economist Diane Swonk shares the latest on market reaction to White House adviser Gary Cohn’s resignation Tuesday, and what the move means amid the Trump administration’s planned steel and aluminium tariffs. Also, we lean more about how Americans Kristine McDivitt Tompkins and her late husband Douglas helped create a 715-mile national park system stretching from Hornopirén, Chile, to the southern tip of South America. And, a plan to build a streetcar route in downtown Fort Lauderdale inched forward last month when the city and county councils voted to approve the project. The executive director of the Fort Lauderdale Downtown Development Authority shares more about the vision behind the effort, and how it might impact the region.