French President Emmanuel Macron and EU Commission President Ursula von der Leyen are hosting a Paris conference to attract US researchers ready to relocate because of President Donald Trump's policies. EU commissioners, scientists and ministers for research from member countries will discuss, among other things, financial incentives at the gathering to lure disgruntled American scientists across the Atlantic. Paris's Sorbonne university is hosting the conference, called "Choose Europe for Science". Under Trump, universities and research facilities in the United States have come under increasing political and financial pressure, including from threats of massive federal funding cuts. Research programmes face closure,...