[eric_t]

There is a saying in the scientific community..."if you want to make sure that your competitor doesn't get any work done for the next two years, give him your code!".

In all seriousness, though, a lot of labs view their in-house codes as a competitive advantage. You may not like it, but science has become commercialized, the labs/unis are all competing about the same grants, which creates a competitive enviroment.