For example, interest rate calculations will go haywire. Even presently, credit cards valid up to 2000 are being issued with expiry dates of 1900. The Indian software industry is particularly geared to fix the millennium bug. Computer professionals can work in the United States on the H-1B visa. There will be a great demand for Indian programmers to fix the bugs in mainframe computers.
Computer professionals travel between U.S. and India a lot.
They are also mobile and change jobs frequently. For instance, a computer professional may have entered the US on an H-1B visa for a particular employer. He or she has now switched jobs and obtained another H-1B approval from the new employer. The question is whether such an individual can travel abroad and return to the United States on the H-1B visa that was issued for the previous employer. The answer to this is tricky.