I have no doubt that we definately have something to worry about here.
There is stuff being withheld from us. The knowledge being withheld from us would almost certainly cause global panic and totally cripple the global economy within days if it
was ever to be shared with us. I would say that this would be the main reason why we are being kept out of the loop here.
That would be their main excuse if they ever got caught out.
That or, just totally denying that they ever had knowledge of the possibility of such an event.
The elite few on this planet who are "in the loop" with all of this (probably only 3 thousand - 10 thousand people) will most likely be the only people on the entire planet that are fully prepared & perhaps even safe from harm.
It is great to see that there are a hell of a lot of people on forums such as this, voicing their concerns & challenging the facts. These people will most likely be prepared to a degree, for what lies ahead.
Whilst there are many out there who believe the whole Elenin saga is rubbish, and nothing to be concerned about, they are still helping to add more fuel to the debate, and motivate the believers into expanding on their research.

Whatever happens, I think that the next two months will give us a clearer picture of what we have to contend with.
There is still plenty of time for us to try and prepare for the possibility of such an event.