The article focuses on Iraq, not America.
The Bible does not support the claim that Rebekah was age 3; this idea comes from an unrelated tradition. Since the Bible is God-breathed, external traditions hold no weight in this context.
Marriage is a solemn commitment, and when the Bible discusses it, it always refers to a union between a man and a woman (Genesis 2:24; Mark 10:7). The Greek and Hebrew terms used in the context of marriage imply mature men and women rather than child brides. Any culture, whether ancient or modern, that allows marriages between young girls and older men essentially legalises child abuse, which is not condoned in Scripture.
Furthermore, Aisha herself states in a hadith that she was 6 years old when she married the Prophet.