_Ha’aretz_ “reports”:http://www.haaretz.com/hasen/spages/1079813.html that Israel will buy Phalanx cannons — best known as anti-anti-ship-missile systems — to defend the population of Sderot. There is apparently an anti-mortar/anti-rocket configuration used by the U.S. Army to defend fixed positions, and that’s what they’re buying.
“Earlier reports”:http://www.haaretz.com/hasen/spages/1068860.html indicate that this has been a long time in coming.
Some possible contributing factors to the delay were “discussed here”:http://www.totalwonkerr.net/1942/dome-sweet-dome.