Are aliens among us?

Was watching a documentary on DISCOVERY CHANNEL about Rosswell this morning and i thought " What if aliens were among us?" so i went to youtube to check out what the Goverment know's about this..and i found out that they have been keeping this whole Extra Terrestrial thing a secret from us who deserves to know what is going on in this world. The videos i've found are both real and yet disturbing...i cannot get it in my head that there were sightings on UFO's in many countries and i have never laid eyes on one. But our universe is so big, it should be of no surprise to know that there are other living things besides us. I pray that if Malaysia gets to see a UFO, it won't be a hostile alien. Btw, watch the video's only if you are ready to face the truth about aliens. If you want to know more..just check it out in youtube.com they have lots of information. Leave me a comment on what you think =) thanx