ALONG THE ISRAEL-GAZA BORDER — The 10 gunmen from Gaza knew exactly how to find the Israeli intelligence hub — and how to get inside. After crossing into Israel, they headed east on five motorcycles, two gunmen on each vehicle, shooting at passing civilian cars as they pressed forward. Ten miles later, they veered off the road into a stretch of woodland, dismounting outside an unmanned gate to a military base. They blew open the barrier with a small explosive charge, entered the base and paused