Clearly, one of the reasons that claims of conspiracy are so effective is that they are all but impossible to confirm or deny. In some ways, the Conspiracy of Scientists Theory (TM) is a bit like invading Russia;
also: never go in against a sicilian when DEATH IS ON THE LINE!
1) Presumably, infiltration of the sanctum sanctorum of the scientists would be one way. Recordings of their evil discussions could then be broadcast to the world, thus discrediting them. Unfortunately, this is going to be very hard to do for two reasons. Firstly, they might convert you via advanced brainwashing techniques to believing their lies, and secondly, just because you never make it to the inner sanctum doesn't mean that it isn't there somewhere. Its also going to take a lot of time, money and effort. So that totally fails.
i have heard stories of scientists being dismissed from reputable organization for openly voicing beliefs in creationism. i do not recall how accurate these stories were, but i do recall them being suspicious.
and even if that is the case, where's the problem? that's like dismissing a mathematician for ignoring things like the distrubitive property, and teaching that you can add fractions straigh across.
if someone shows blatant ignorance of their field, they SHOULD be fired.
2) Demonstrating where the bible explains really big important observable phenomina better than science would be another way perhaps. But as far as I'm aware, there aren't many examples of that.
i'm arguing in two different threads that the bible talks about the earth being flat, with a giant glass dome overhead called "heaven" that contains the stars etc, and outside of that is just water. and that's the entire universe.
i don't think the bible's doing so good at explaining natural phenomina. i don't really even think it TRIES to.