LONDON (AP) — Pro-Brexit politicians and business figures are urging British Prime Minister Theresa May to be ready to walk away from the European Union without a trade agreement, despite warnings from major manufacturers that a "no deal" Brexit would be an economic disaster. In an open letter, 60 lawmakers, economists and business chiefs say Britain should threaten to withhold the 39 billion pound ($52 billion) divorce bill it has already agreed to pay. The letter released Sunday by Economists for Free Trade urges U.K.