There are several categories.
The first, obviously, is that people in world markets and world supply chains worry about labour stability. We've had a number of labour conflicts, in most cases short but nonetheless disruptive. A rail strike or a lockout of any length can set back supply chains by weeks and months.
Our supply chains are also fragile physically, and you have many single points of failure. I would point you to the Second Narrows Bridge in your part of the country, but there are many others. We need to be addressing those bottlenecks and those fragile parts of our supply chains if we are going to ensure that we can build the capacity, the trust, the stability and the reliability required to substantially increase our non-U.S. trade.