Lasz, we may have more of these types of kids than we did when you and I were little shavers. If there are, from what I have seen, many of them are the way that they are because of parental drug abuse, especially by the mother when she was pregnant with them. Also, there is more of an organized attempt by school, courts, and psychologists to identify them than there has been in the past.
I've read a couple hundred psychological and medical profiles on juvenile delinquents incarcerated at the unit where I work. Certainly our resident population is atypical, when compared to the population of kids in a public school. We have the incorrigibles who no one can seem to do anything with, or who have hung with the wrong crowd and been busted. Reading about their dysfunctional home environments will make the hair stand up on your necks. Despite the differences in race, age, or social settings that they came from, many of them have one thing in common: a history of hyperactivity diagnosed as HD or ADHD. Almost without fail, those that have been diagnosed with one of those two conditions have had medication prescribed to control the hyperactivity or violent mood swings.
Physiological causes of those conditions are especially hard to treat: medication tends to be the most used method of bringing them under control.
I don't like it, but for many of them there seems to be little choice.
As for DNA programming, that's an idea straight out of the depths of Hell....at least as far as I'm concerned.
Regards, Shuckins