Hilary’s campaign goes negative as she struggles to stay in the race, we’ll speak to Bob Parry about the campaign and the politics around it, and will the US turn the alleged confrontation in the Gulf of Hormuz into another Gulf of Tonkin?; also, Palestine Bureau Chief Kristen Ess reports from the West Bank, on the eve of George W Bush’s visit, about the US-backed fomenting of Fatah-Hamas strife while subverting the Palestinian democratic process; Evelina Molina features an interview with a family whose property is being cut in two by the proposed path of the separation wall at the US-Mexico border; JR and the Block Report on the homeland security attack on Puerto Rican anti-colonialist artists and activists; and the Knight Report.