Tehran’s Substitute Friday Prayer Leader, Ayatollah Seyyed Ahmad Khatami, said here on Friday that collapse of the US-affiliated dictators such as bin Ali, Qaddafi and Mubarak, exit of the US from Iraq, Wall Street popular uprising and Palestine’s membership in the UNESCO are all indicative that the US’ supremacy is declining. Addressing the Friday Prayers congregation in Tehran University campus, the Ayatollah also said that the western analysts themselves have admitted that the West’s liberal democracy is on the verge of collapse. The US’ nations have set up tents in cold weather to make their voice of protest against the country’s statesmen heard by the world, he said.