Bill Gates has an estimated net worth of $51 billion. The M1 Abrams Main Battle Tank, introduced in the 1980s, has never been destroyed in combat and is the fastest tank, though the US only refurbishes and has not produced a new one since the 1980s. Gas prices in the US have increased by $3 since the Iraq war began, and the US has borrowed hundreds of billions of dollars to fund the war in Iraq.

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