NEW YORK, NY - SEPTEMBER 19: Prime Minister Theresa May speaks to American business leaders accompanied by the British Consul General, Antonia Romeo in New York, where she is attending the Untied Nations General Assembly on September 19, 2016 in New York City. World leaders have arrived in New York for the 71st session of the UN General Assembly. The annual gathering is an opportunity for a number of high-level meetings, sideline bilaterals and think tank addresses concerning global issues. (Photo by Stefan Rousseau - Pool /Getty Images)