There are two that spring to my mind.  One is Larry Niven's short:
"Rotating Cylinders and the possibility of Global Causality Violation"
(title pinched from a scientific paper) where a future historian notes
that over the ages various civilizations have tried to build a time
machine, but each one has failed.  He surmises that the universe is
taking action to prevent the construction of a time machine, and thus
that the way to win the current war is to encourage the enemy to make
the attempt.

Closer to the mark is "Einstein's Bridge", a novel by John Cramer.  In
this piece of alternative time-line fiction, the US builds the
Superconducting Super Collider, only to open a wormhole to another
universe which is used by the inhabitants of that universe to invade.
The only way to prevent this is for the heroes to make a jump into the
past and prevent the construction of the SSC, much like in the
article.  The curious thing about that novel is that when Cramer
started writing it in the 90s he wasn't writing an alternative
timeline, but a story set in the near future.  When the SSC got
canceled he had to rewrite the story into its final form.

Barry

2009/10/22 Judy Solomon <[log in to unmask]>:
> ok, seriously...I know I read this scenario in at least one, if not more,
> science fiction story.
>
>
>
> On Wed, Oct 21, 2009 at 2:37 PM, David Chessler <[log in to unmask]> wrote:
>
>> ------ Original Message ------
>> Received: Wed, 21 Oct 2009 02:07:54 PM EDT
>> From: Helge Moulding <[log in to unmask]>
>> To: [log in to unmask]
>> Subject: [Spam] Re: [SF-LIT] Fwd: [johnmacsgroup] Sabotage ... from the
>> future
>> ... on the Large Hadron Collider?
>>
>> > Heh. I scrolled through some of the comments following that short
>> > article. People think of the darndest things.


-- 
I am a Statistician.  One False move and you're a Statistic.