There is a small period of grace remaining but only if israel agrees to set up a nonmilitary commission to investigate the charges of the Goldstone Commission. If they do not or if the commission, if set up, is shown to be a sham, there is no doubt those like Barak and others cahrged with war crimes will be subjuect to arrest if travelling to most European countries. They will have to do a lot of conference calling because the chances of Israel setting up a commission is unlikely. They know what they would find.
Law expanding definition of terrorist activity passes first Knesset reading (Haaretz)
from the article: U.K. court defers Palestinian bid to arrest Ehud Barak