The PA is getting ready to take its war against Israel a step further. Arabs of the autonomous areas have set up rocket launchers in Kalkilye and Tul Karem, the cities closest to pre-1967 Israel. Israel\'s defense establishment has received information from several sources to the effect that Hamas recently transferred a small number of launchers and Kassem-2 shells from Gaza to Yesha cities. The Kassem-2 is an improvement on a 1.5-kilometer range rocket, and can reach up to 8 kilometers (5 miles). IDF officers told Ha\'aretz that the terrorists are expected to start firing the rockets in the coming days. Prime Minister Sharon said last week that such use of the missiles would be the \"crossing of all red lines.\"