Mt. Kailash, do you know or just heard about people who couldn't enter the US? I know that is not true. My sister got 5 year visa but because of family reasons, couldn't come within the first year. Then people kept telling her that she shouldn't even try going to the US because she didn't come within the first 6 months. She lost confidence and decided not to come. She was like, "Why waste money and buy plane ticket to US if they do not let you enter the country?" Finally I convinced her to come and she came a month before the 5 year visa expired. They did not ask her ANYTHING besides her reason for wanting to visit and she said to visit my sister. She got a 6 month visa at the airport. She is going to return before the visa expires. People shouldn't scare people like that.