When we do the main estimates, not all the approvals are in place. The programs are project-driven, and often the projects need requirements to be approved and well defined. The timing is not necessarily conducive to having all the items in the main estimates. Sometimes you have budget items that come after main estimates, so sometimes they are reflected in the RPP and sometimes not. I will sum this up by saying that it's timing.
On April 30th, 2013. See this statement in context.