Working at Luggage Pros over the last few years, I've heard first hand how many questions people have regarding the ever-changing rules and regulations associated with travel. Now there's a great place to go to. In addition to the main Transportation Security Administration website, travelers now have the TSA blog as another great source of travel information. I think this is a great way for the TSA to put more of a personal, friendly, "we're here to help you" spin on their duties to, "protect the nation's transportation systems so you and your family can travel safely."
This blog lets you hear from TSA employees about new policies, and hear what other people have to say about them. Commenting on the posts gives you the ability to address concerns, issues, frustrations, as well as ask questions about them.
A few personal highlights from the TSA blog include:
"Gripes and Grins" - They're encouraging you to post about your experiences (positive AND negative) with the TSA.
"Liquid carry on regulations" - This covers some important questions on why they have the rules they have. And they even have a video showing how much damage a liquid explosive could cause. Should give travelers a good idea as to why the rules are in place.
As you can see by many of the readers comments, some of these posts may not cover the exact topics you're interested in, or go into enough detail to answer all your questions. However, it is a step in the right direction. If you don't see an answer to your question....post a comment and tell them. With the new blog format, they're here to interact with and help you.