[killjoy]

I wonder why they didn't put up an array of barrage balloons to protect against low flying craft.

Wingspan of a TLAM is much smaller than that of a WWII bomber.

[Carl from Marietta]

Well of course the difference in the width of the aircraft would make it harder to knock down, but deployed in a geometric pattern which would make it hard to breakthrough without making radical course changes in relatively short distances would get some of them, particularly when you know they're coming. It seems like fairly cheap defensive hardware, and you could change the pattern of deployment rapidly and randomly.

Of course the Navy could reprogram the missiles to gain altitude upon arrival and come straight down on the target. Oh well, they'd be decorative at any rate.