Carpets woven by slaves could be on sale in some of America's best known stores. That's according to an independent investigation into the carpet industry in India. It estimates that 45% of workers are victims of forced labor and 20% are under 18 years old. CNN contacted some of the importers and exporters named in the report who denied the use of slave labor. Siddharth Kara – who led the research and is one of the world’s foremost experts on modern-day slavery – spoke to Becky about what he uncovered.