Yeah, that's what I'm afraid of. Not only the side effects, but also how people will change in the future. What if those devices start to control us somehow. What if those chips will be hacked, imagine that. The most dangerous thing is when bad guys realize that someone has a chip in his hand, they will just start to cut hands and steal everything from them. It will be horrible to see such crimes. I hope it will not come to that. They can also hack those chips just by passing by for example in the train or bus or a parking station. Of course it's maybe useful to get out from home with no keys and no creadit card, but bad people always will exist.