The desire to avoid further economic disruption amid the COVID-19 crisis will keep the United Kingdom and European Union focused on reaching a limited trade deal before London exits the EU single market on Jan. 1. But threats on both sides to abort negotiations are again increasing the possibility of a no-deal Brexit that would force the European Union and the United Kingdom to trade under costly World Trade Organization (WTO) tariffs. The latest round of EU-U.K. trade talks began in London on Sept. 8 and will end on Sept. 11. On Sept. 7, U.K. Prime Minister Boris Johnson said his government would walk away from the negotiations if there is not a deal by Oct. 15. The U.K. government is also expected to unveil a bill on Sept. 9 that "clarifies" certain aspects of the Withdrawal Agreement it negotiated with the European Union late last year, including London's interpretation...