The year after Congress passed the Solarz amendment in August 1985, Rep. Stephen Solarz (D-CA) traveled to Pakistan, a country that would become a major test case for the amendment which cut off U.S. foreign aid to recipients. Solarz confronted General Zia and other top officials with his perception, based on U.S. intelligence, that Pakistan’s Kahuta plant was enriching weapons-grade enriched uranium. The Pakistanis strenuously denied the charge.