Whenever anti-immigrant sentiment arises--almost always during a recession--I wonder how people can forget the jobs and inventions immigrants have given to America:
If you've ever used eBay, Google, or almost any technology company's products, chances are, you are benefiting from an immigrant's work. Even Steve Jobs is ethnically part-Egyptian.
More on immigration here, where I wrote, "Being anti-immigration seems like another case of cutting your nose to spite your face--at the end of the day, you just hurt yourself."
Bonus: from Palo Alto's Sutter Hill Ventures, an article titled, "America’s Secret Innovation Weapon: Immigration."