Current assessments indicate that Iran possesses sufficient highly enriched uranium to develop up to 10 nuclear weapons, while United Nations nuclear inspectors are being denied entry to the nation's bombed nuclear facilities. Iran stands alone globally in enriching uranium to a purity of 60 percent without confirming a weapons program. The 60-day timeframe set by the June 17 agreement for nuclear discussions is in effect, with the speaker of Iran's parliament asserting that IAEA access is not permissible under any conditions. On July 1, Vice President Vance expressed US concerns regarding the nuclear situation as technical negotiations persist in Doha.