I would not support the development of a "bionic" person. I imagine there is a situation where I would be comfortable with the use of a bionic person, but I cannot think of it presently. On second thought, to rescue someone in a burning building, I think a bionic person would be very useful. My general reason for not supporting a bionic person development is that I am assuming there would be a real person controlling the bionic person, so it'd be like carrying out the actions you desired but at an arm's length or much longer. Growing further removed from the consequences of our actions seems to be one of the biggest contributors to the current downfall of the human race. We eat food that we don't see how it was grown or raised, and we throw away often many things a day with relatively little knowledge of the impact its making on our world. We authorize wars when very often we don't experience the losses personally. We say cruel things behind the guise of an online mask that we might never say in person. I think the more ways we can have a closer interaction with what we're acting on, the better. You can see why the fire example would be a good exception to this thought.
I also wouldn't endorse bionic people for military use for the same reasons. Perhaps I'm just denying the reality of the world we live in today, but for the present moment, I'm ok with that.
