Artificial Intelligence is a threat?

The more the technology grows, the more the world should fear. The era of artificial intelligence is coming. Experts say that those who lead in the field of AI could rule the world. The early signs proving that this statement is true, is coming from the news about the military. It is learned that China is spending big money in AI research. Chinese military is developing drones which could fly independently and launch bombs. If similar developments happen for other countries too, what could be the nature of a war which happens next? We should fear.
Many scientists have already warned about the consequences if AI grows without control.