The foreskin is one of several useless appendages humans have such as the appendix & tonsils. It's dead skin that causes health & hygiene problems if not properly cleaned. Circumcision also makes sex more stimulating for the man & woman. Many doctors perform circumcisions on non-Jewish babies for health reasons. It's certainly not "barbaric" or "genetic mutilation".
10 bodies, black boxes recovered from mysterious Indonesian plane crash (AP)
from the article: Actor Russell Crowe apologizes for anti-circumcision Twitter rant