Samaritan’s Purse is a nondenominational Christian charity with a 40-year history of bringing aid to the suffering people of the world. It has been deeply involved in aid for Haiti, which recently imported a cholera outbreak on top of its other woes. SP President Franklin Graham invited Sarah Palin and Fox News host Greta van Susteren to join him on a weekend visit to the island, to “see our work first-hand, and to draw attention to the plight of the Haitian people,” as stated in a report on the organization’s website. Palin has worked with Samaritan’s Purse before, on a...