Hi Raoul:

I agree that IF the danger is from a meteor, comet, or an asteroid it could not be kept a secret for very long.
But what if the danger was from something 'unbelievable'. For instance it is almost unbelievable that very old manmade cities could be under the oceans of the world. I'm sure that such structures do not pose a danger, but the information about their existence could be very easily suppressed. As evidenced by this comment about their discovery.

http://www.eaglesdisobey.com/UnderwaterRuins.htm

One would imagine that such a mind-boggling find would be the most exciting piece of news an archaeologist could possibly hope to learn. Even so, outside of the “Ancient American” and CNN’s single report, the pall of silence covering all the facts about Okinawa’s structures screens them from view more effectively then their location at the bottom of the sea. Why? How can this appalling neglect persist in the face of a discovery of such unparalleled magnitude? At the risk of accusations of paranoia, one might conclude that a real conspiracy of managed information dominates America’s well-springs of public knowledge. Frank Joseph - “Ancient American”

What if something really bad, 'unbelievable', and manmade, was happening to the world.
Would it be wise to even try to explain the danger?

Johannes