(a)Activities within 10 years preceding visa application. An alien shall be ineligible under INA 212(a)(2)(D) only if- (1) The alien is coming to the United States solely, principally, or incidentally to engage in prostitution, or has engaged in prostitution, or the alien directly or indirectly procures or attempts to procure, or procured or attempted to procure or to import prostitutes or persons for the purposes of prostitution, or receives or received, in whole or in part, the proceeds of prostitution;