See link to blog below. But I can answer this question with one word, greed.
And contary to the report’s opinion, they do promote and put H1-B workers into advance position.
And what irratates me to no end, is that most of the recruiting companines for contract programmers seem to have fallen into the hands of folks from India. Add to that the fact they do not pay these workers the prevailing wages like the law dictates, and you have another screwing of the American worker.
Why high-tech firms bring in foreigners — Link removed

The Soloist.
Let’s just say I am somewhat fascinated by the Dalai Lama as a person and as a religious leader. To those of us that know little about Buddhism, he seems strange and somewhat exotic. From the prayer flags waving in the breeze to the remote barren moon-scape of a land that he once ruled, every thing about this man is foreign. This film is a tale of two journeys. The journey of a documentary film maker with a life long dream to interview his personal hero and the hero. The hero is at once a simple monk who lives on $10/day and only travels economy and the political and spiritual leader of a country and an age old people.