A few years ago, National Geographic reported that there are 27 million slaves in the world today – more than any other time in human history. What can be done to free them? Be a "Wilberforce" or "Newton"! Let me explain. A force called WilberforceIn the 18th century, English traders were capturing and selling tens of thousands of Africans as slaves every year – at least 12 million were brought to the Americas and West Indies. (Muslim traders exported as many as 17 million slaves.) The transatlantic slave trade was a very lucrative business, and very few in that day...