Prime Minister Narendra Modi heads to the United States this week for a visit billed as a turning point for bilateral relations, with deeper cooperation in defence industry and sharing high technology in sharp focus. The visit is expected to give India access to critical American technologies Washington rarely shares with non-allies, strengthening a new bond that is underpinned by not just global politics but also business and economics. Washington and New Delhi, whose relationship was marked by mutual suspicion during the Cold War, have been moving closer for over two decades now with successive U.S. presidents displaying bipartisan support…