The two-year budget deal unveiled Tuesday night would save the Defense Department from taking a $22 billion hit in January, when the next round of sequestration cuts were set to take effect. The deal raises the cost caps on defense spending from $498 billion as was mandated in the Budget Control Act to $520 billion for fiscal year 2014. That total is still lower than the $552 billion figure the Pentagon, House and Senate had agreed to earlier this year,…