Monkey Men

This comes close to disagreeing with one of pop culture's commandments: If we can do it, do it.

In cutting-edge experiments, scientists have injected human brain cells into monkey fetuses to study the effects.
Critics argue that if these fetuses are allowed to develop into self-aware subjects, science will be thrown into an ethical nightmare.
An eminent committee of American scientists will call for restrictions into the research, saying the outcome of such studies cannot be predicted and may in fact produce subjects with a 'super-animal' intelligence.

Link.

Of course, it's probably too little too late.

There could, of course, be benefits to manufacturing advanced chimeras. We, for instance, are hoping to buy a monkey guy for simple chores around the house and things like that.