The towed missile barge.
I thought I had hit on something new and unique but as usual...nothing is new under the sun. The US Navy has more than enough sensors. From ships to planes to uavs to sats to allied forces...we have enough sensors. What we might need are more shooters. A couple of barges in the Pacific and in the Atlantic maintained like our prepositioned ships might be just what the doctor ordered.
Worried about saturation attacks by anti-ship missiles? Tow a couple of these behind a Burke loaded with about 1000 plus quad packed SM3's. Want to savage a coast line? Fill the other half with about 500 tomahawk land attack missiles. When done, have your crappy little LCS do some real work and tow it back to base for refill so that the real ships can stay in the fight (just joking...had to slam the LCS for fun).
This is a winner. Admit it!