You almost have to have been to MCI to understand. There are 3 circular terminals. The distance from the front doors to the gate doors probably isn't more than 60 feet in depth. Each set of two or three gates has it's own security line. Once you are through security, you are in an area the size of a typical gate area. No access to anywhere else at that point.

This was an excellent design in the days before the TSA. One of the quickest airports there was.

Security lines ther are short since they are so gate specfic. If you need services, just wait to the last minute to board.

Not sure how to solve the problem of actually bringing water on board though. Fortunately you're usually on a short flight to MSP or MEM.

The short answer to the OP's question - NO.