The H-1B visa program brings people from other countries to take US technology jobs at lower wages. These foreign workers have no options and few rights and are often treated badly. The H-1B program acts primarily as a subsidy for huge corporations. If we care about US jobs then let's end it now.
Why is this important?
I've been outsourced overseas by a corporation that does not care about quality, only about saving a few bucks on their next annual report. This has happened to many people I know and could happen to you next. Look up "H1B" on Wikipedia for much more background.