Cosmic rays throughout the universe produce similar collisions of higher energy than will be possible with the LHC on a regular basis.

Even if a micro black hole is created AND it does not instantly evaporate AND it becomes trapped by the earth's gravity, it is likely that it will aggregate mass so slowly that something else out there will destroy the earth before the black hole is able to do so.

A strangelet disaster is similarly unlikely. The mere fact that Earth (in addition to countless other stars and planets) has not yet been converted to strange matter is a testament in itself to the rarity of such an event in the universe.

As for a vacuum metastability event, well, we probably would have been killed by such an event resulting from either natural sources or an extraterrestrial civilization's particle collider long ago if it were that easy to initiate.

However, in the unlikely event that:

a) The LHC does in fact destroy the earth,

b) Humanity somehow survives this event and relocates to somewhere else in the universe,

c) I am still alive,

d) Your beneficiary still exists, and

e) Money as we know it still has value,

then I will gladly pay up.

I would be interested to know which of the scenarios I have mentioned(or have not mentioned) Mr. Keane thinks is likely to destroy the planet.