Have you seen these commercials? It's pink citations flying down the road and attacking people who don't wear their seatbelts, with an ominous voice-over saying "OFFICERS ALL OVER THE COUNTRY ARE WRITING TICKETS! IF YOU DON'T WEAR YOUR SEATBELT, YOU COULD PAY A FINE!"
Now, aside from the fact that I have huge problems with the government legislating all this, here's what struck me about it as I was driving home tomorrow. The Obama administration obviously cannot handle a state enforcing immigration laws. Yet they have no problem with enforcing a nationwide law that interferes in a private citizen's life.
Maybe it's because interfering in a private citizen's life brings in cash, whereas enforcing immigration laws costs money.