Exactly who would be those that "mean harm" to us?
Wouldn't making sure that everyone has access to the technology ensure that everyone was playing with the same capability and therefore no one could take advantage of anyone?
In nuclear war it's called MAD, you may have heard of it...it stands for Mutually Assured Destruction.
How many times have nukes gone off recently?
Seems to work pretty well.
As a bonus, we sell more POET and benefit from increased sales.
Win-Win.