Security and Customer Service at Airports - Opportunity to get better

This is not a rant against TSA, I think they are doing a reasonably good job. I just passed through the BWI airport and there wss no line in Terminal D and if I was doing any other task I should have walked away happy that it took less than 5 minutes to walk through security.

I think flying has become a chore and the best part of a vacation does not include the security lines at airports or for that matter the flight itself. As a passenger I am always worried about forgetting something while going through the security line added to that the harsh and loud instructions from the TSA staff makes feel guilty that I could be doing something wrong and get publicly rebuked in a loud voice.

Here are my suggestions :

• No loud shouting should be allowed 
• Talk to anyone who makes mistakes in a very friendly and soothing tone.
• Pay special attention to anyone needing help if necessary asking other fellow passengers to help.

Should be simple enough. What do you think ?