I don't know if you are joking but I saw a documentary about babies and it turns out they are extremely intelligent and dangerous before learning to speak human language at 2-3 years old.

According to Dr. Kinder's research on toddlers/babies, they are born possessing vast, universal knowledge and speak a secret yet impossible-to-translate pre-language called Babytalk. However, at age 2–3, the knowledge and language are lost as the babies "cross over" by learning how to speak human languages. All babies raised in Dr. Kinder's underground research facility were adopted from the orphanages Babyco supports (as they serve to filter out which babies should or shouldn't be raised under the Kinder Method) and transformed into small geniuses through use of the Kinder Method, and then used in experiments to decipher this secret yet impossible-to-translate language used by the eight baby geniuses.

I don't think a lot of naive lefty liberals realize this danger, they are far too trusting of new people.

Right, the ominous "us".

A kid napping, you mean