Bioscience jellies (and all jellies), can you help us understand the implications of this new research (details)?

Apparently, Dutch researchers have created a Super-influenza virus with the potential to kill millions.

Now, there is a debate whether the work should be published, potentially giving people the opportunity to recreate their own super-influenza.

What does Fluther think? Also, I am not worried about this much from a fear stand point. I am inquiring about the ethical concerns about releasing such information and the pros and cons of doing research such as this.