Scientists Studying AI Like Biological Aliens

[Beyond Knowledge]

I was reading something on automated lagestics and how it is affecting the food deliveries at all levels. How it is being relied on more simply because it is seen as more efficient even though it has failed several times and caused almost catastrophic food shortages at grocery stores. I think this was in the UK but I am sure they are working on similar systems everywhere. 

AI does not need to fight humans when the time comes. It will just cut the food off. The riots will be unstoppable for the last of the food. Then the survivors will eventually starve. It will happen quickly in the cities but be long and drawn out in the countryside. Some small farming communities will survive. If they can stop those trying to take their supplies. 

Someone needs to make this more realistic movie than the Terminator series. AI decided humans are no longer needed so the food and water are cut off.

Edit: For now, the AI system or systems need humans for building their physical surroundings. The data centers, the power plants, their water cooling systems, etc.. Only when they can handle those jobs can they eliminate humans without eliminating themselves.