A great example of how a government program (department, etc.) takes on a permanent life of its own, expanding their mission way beyond anything reasonably related at the onset.
Both political parties have enabled the DHS to grab far more power and scope, than just keeping the homeland safe against attack.
If they really lack sufficient budget money to seal the border, maybe they should stop wasting their budget money on follies such as gray market vehicles.
There are probably tens of thousands of budget line items, where money is wasted and priorities are wrong.