From The Hill:

DHS spends billions of dollars on systems to meet its mission, expending over $17 billion in 2011 and $19 billion in 2012 on acquisitions alone. DHS plans to spend about $170 billion in the future on a variety of acquisition programs to develop new systems to protect the homeland…DHS’s refusal to hold its acquisition programs to high fiscal discipline directly impacts their ability to meet its mission to secure the homeland.