Regarding the physical evidence...there may be a great deal of it. That doesn't mean that the general public is necessarily going to hear about it. And if a scientist were to be convinced by said physical evidence...or by direct experience (a sighting...a viewin on radar, etc...) that doesn't mean that he is going to tell people about it either...if he has been expressly ordered not to by his superiors.

There is a great deal going on in this world, the physical evidence of which does not get revealed to the general public...and NOT just with regard to UFO's.

Therefore, why would anyone assume that merely because they have not seen physical evidence there must necessarily BE none? There may well be plenty.

Do you really think Big Brother shares all his info with you and me?

- LH