IAH - what's with the lines?
 

I have just flown through IAH and was shocked at the length of the lines at immigration. It took me over 2 hours to get through, I only just made my connection.
What happens to those who have shorter connections?
It's a nightmare! Got to be the worst airport in the world! Are they going to do anything about it?
I have to fly through there next month and am seriously worried about making my connection. Is there a fast track for those who have tight connections?

Assume you were lined up in the non-citizen line. For those who require visas to enter the U.S., they are now being fingerprinted. The immigration agents are still getting used to the system. If you don't need a visa, you should not be fingerprinted when you get to the agent.
Same was happening in EWR, though not to the extent you described.

I was in the foreigner's line - however the US line was even longer, stretching down to the gates!
Do you think things will calm down or will it be like this for the forseable future?

Welcome to America.

If it's any consolation, at least you get nearly $2.00 for each unit of your home currency these days.

Yea, but the US citizen/resident line moves about 10 times as fast. One trick I use when entering a foreign country where I'm nobody is to stand on the foreigner line closest to the first citizen/resident line. When the citizen/resident line clears up, sometimes agents will start taking people from the foreigner lines, and of course, will do so from the closest one to them.

The long lines are politics...customs/immigration wanted something from the airlines and the airlines did not want to provide it, so this is their retaliation. FUN FUN FUN!!!