Nearly 46 million people across the globe are living in modern slavery, a system of exploitation that governments and businesses must do more to end, according to the Walk Free Foundation. The Australia-based rights group on Tuesday released its global slavery index,which tracks the number of people stuck in "situations of exploitation that a person cannot refuse or leave because of threats, violence, coercion, abuse of power or deception." The instances include forced labor in farming, fishing and manufacturing, commercial sex work and forced marriage.