Monday: Pentagon's no-bid contracts tripled in 10 years of war

Tuesday: After a decade of war, KBR’s “concierge” contract tops $37 billion

Wednesday: Pentagon spends millions of US tax dollars on Russian-made helicopters to outfit Iraqi and Afghan militaries

Thursday: Pentagon caught abusing its sole-source authority on weapons from tankers to choppers

Friday: Other departments, from Energy to State, have far better records on competition for big contracts