I am just a guy with a keen interest in UFOs and aliens etc. Yes, I do believe that they are here and they have been here for a loooong time. To them we are probably little more than frogs in a pond. They are studying us. Why? Who knows.
I do believe also that they will let us know that they are here, but only when it suits them to do so. We only see tham when something goes wrong. i.e. Roswell and a few other incidents. They know that the military and some governments do not want people to know that they are there, so they act accordingly. Not to be cooperative, but to take advantage of that fact.
I hope that anyone who has information that we can use here will send it in. We will check it out and publish.