By David Batstone, Special to CNN
Editor's note: David Batstone is the co-founder and president of Not For Sale, which fights human trafficking and slavery. The opinions in this guest post are solely those of David Batstone.
On February 2, faith leaders gathered in the U.S. capital to pray. What difference will it make? What is the role of prayer, worship, and faith in ending social problems that I care about, like extreme poverty and modern-day slavery? FULL POST