There is one group of experts who believe that Strong AI or Superintelligence will help us in eradicating war, diseases and poverty. On the other hand, some experts believe that it can be criminally used to develop autonomous weapons for killing humans. They are also concerned about AI which on its own may develop some destructive methods to achieve the goals.
Some people suggest that Artificial Intelligence can be managed like Nuclear weapons, but this comparison in itself is not wise. Nuclear weapons require rarely found raw materials like uranium and plutonium, whereas AI is basically a software. When the computers will be powerful enough, anybody knowing the procedure to write the relevant code could create Artificial Intelligence anywhere.