Senator John Kerry blamed the Bush administration today for helping foster the political instability in Haiti that has given rise to the armed insurgency that now controls nearly half of the country and threatens to overthrow the government of President Jean-Bertrand Aristide. "I think the administration has missed a lot of opportunities, in fact, has exacerbated the situation over the last two years with its cutoff of humanitarian assistance and its attitude towards the Aristide administration," Mr. Kerry said. "So they sort of created the environment within which the insurgency could grow and take root, and now they're trying to...