I had been impressed by the fact that biological systems were based on molecular machines and that we were learning to design and build these sorts of things.

I had been impressed by the fact that biological systems were based on molecular machines and that we were learning to design and build these sorts of things.

You can find academic and industrial groups doing some relevant work, but there isn't a focus on building complex molecular systems. In that respect, Japan is first, Europe is second, and we're third.

Any powerful technology can be abused.

My greatest concern is that the emergence of this technology without the appropriate public attention and international controls could lead to an unstable arms race.