Courtesy, Sept. 3 -- As American politics casts a long shadow over its reservoir of scientific talent, India, a talent exporter to the world's technology and research centres for decades, might be poised for a wave of reverse migration of scientific talent from the US.Immigration restriction anxieties, reduced federal grants, and the anti-science ideology of US President Donald Trump are persuading early-career Indian scientists and engineers already in the US to rethink their careers and the bleak futures they face.International post-doctoral researchers and PhD students - a significant number of them Indian - are seriously considering leaving the United States due to dwindling job prospects and reduced research budgets, especially in fe...