What must be done is quite obvious: Meaure the maximum range of these mortors, as well as of the 'quasam' rockets. Then, to which ever of those lengths is the longer, proceeding from the border, you must raze the ground of all objects and structures behind or beneath which the miscreants are able to conceal themselves. If ranges of these weapons 'improve,' the result will be obvious: The Gazans will steadily drive themselves into the deserts of Egypt.
Suspect Bangkok bomber arrested, found with possible bomb-making materials (Reuters)
from the article: Palestinian militants fire at least 11 mortar shells at Israeli targets