I think technology nowdays is awesome, I love every last minute of it. I just can't wait to see the next 50 to 100 years! As for them being used in war, well that is just a fact of life, nothing will change it. The good news is less people die these days in war, mainly due to technology I think but that is pure speculation! Plus we haven't had a big war these days either. One could argue that this is because of technology. It is easier to wipe out a lot of people in a short time so every one is kept at bay.
(By the way I really want one of those mini tanks!!!)