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Relations may not be warm between the Trump administration and the World Trade Organization. Financial Times editor Shawn Donnan  joins us to discuss news that the U.S. may start bypassing the WTO if it thinks other countries are cheating on trade. Next, we'll look at a simple blood test that could help identify coronary heart disease, and then explore the possibility of a gas tax in Tennessee.

Follow David Brancaccio at @DavidBrancaccio