U.S. farmers’ export markets were challenging before the trade war, and they are not coming back. It is time for Plan B. The trade agreement still being negotiated with the United Kingdom will supposedly allow U.S. beef producers to fill up to 1.5 percent of the British market. Except the U.S. is short of beef for its own consumers, and Washington is allowing Britain to maintain its ban on hormone treated beef. Pork and poultry are not part of the agreement and they would raise a whole different set of European technical barriers. USDA Secretary Brooke Rollins suggested that American exporters should follow the market and not the science, but conceding this principal is a slippery slope.  It is true that good businesses deliver w...