India, June 9 -- The USA has seen waves of migration. First from various countries in Europe and then from Asia and Latin America. What this means is that America was always a melting pot of cultures and took ideas from all over the world. It had the best of every country. This led to it being the most innovative country around, especially in tech.

That seems to be rapidly changing. If you go to America as a tourist, you have to keep your documentation with you at all times as you may be checked anytime. If you are going as a student, then forget protests and activism. You may be deported even for forgetting to buy a ticket on a bus or jumping a red light. What if your college's right to take foreign students is blocked? You have no choi...