TEHRAN, Iran - The presidents of Iran and Venezuela, leading U.S. critics, pledged Saturday to support one another in disputes with Washington, with the Iranian calling Hugo Chavez "a brother and trench mate." As Chavez arrived for a two-day visit. Iran faced renewed international criticism for its nuclear program and for backing Hezbollah guerrillas in its war with Israel. The five permanent members of the U.N. Security Council on Friday reached a deal on a resolution that would give Iran until the end of August to suspend uranium enrichment or face the threat of economic and diplomatic sanctions. Iranian state...