The four NASA principals have downplayed differences within the opposition coalition only 2 days after Kalonzo Musyoka, Musalia Mudavadi and Moses Wetangula skipped the controversial swearing in of their leader Raila Odinga. Despite members of ODM party piling pressure on Odinga to reconsider his relationship with the trio, the principals maintained they are united and that Kalonzo will take his oath of office as the deputy president at a later date. But as Chris Thairu reports, there is more than meets the eye.