Does this really surprise anyone? It's a sign of one of the major problems in Congress what assignments and perks you receive depend upon how long you serve. And, the long you serve, the more likely you are to hand out favors for your constituents and supporters. So, in order to get re-elected so you can keep what you have or get more you ensure the $$$ flow to those who will fill your campaign coffers.
Read the full story @ New report links longer congressional tenures to increased govt. spending | Human Events
And I expect a whole lot of posts demanding term-limits. The only term-limits should be the results at the ballot box!!!