I asked Secretary Duffy what Americans should be able to do, if we get this decade right, that they can't do today. Sean Duffy is the Secretary of Transportation, and he sat down with me at our Startup Industrial Base event in DC today. He went straight to how our country's air traffic gets managed. At the command center, people sit in front of six screens with a paper flight chart above them, trying to make the calls on weather and routing. His example: four planes reach the same runway at…