India's acquisition of the state-of-the art Russian S-400 ballistic missile shield could come at the cost of getting access to cutting-edge US military equipment. In an exclusive interview to NDTV, William Thornberry, the Chairman of the House Armed Services Committee, said, "The acquisition of this technology will limit, I am afraid, the degree with which the United States will feel comfortable in bringing additional technology into whatever country we are talking about." (Photo courtesy: General Atomics)