According to U.S. Immigration and Customs Enforcement, investigations into trafficking "increased by more than 400 percent in the first six months of fiscal year 2005, compared to the total number of cases in fiscal year 2004." Although keeping true numbers on these effusive crimes is next to impossible, according to the U.S. Department of Justice, between 14,500 and 17,500 people are being traded within the United States. Internationally, the estimate is between 600,000 and 800,000, mostly women and children. But nations plagued with sex trafficking, who've enabled sex trafficking, are changing in part because, according to Congressman Chris Smith (R., N.J.), "they know we mean business."