Whether you travel a lot or just a few times per year, you have probably noticed the nuisance that it is dealing with the security checkpoints. Depending on the airport you are in, it can easily take you anywhere from 20 minutes to up to an hour (in my experience, MIA is the worst airport in waiting times for anything - even for a sandwich!). If you are flying in internationally to the US and you need to make a connection, there really is no way of knowing how bad the security checkpoints are to see if you are going to make your flight - until now.
TSA has published
this web page that lists the estimated wait time when going through security. By selecting a couple of check boxes, you can get detailed information on the average wait time to arrive at a particular gate at a particular time. This can really help you out beforehand in case you will miss your flight to reschedule a new one ASAP.