The massive protests against the Israeli attack on Gaza all over the UK, coupled with the resignation of the Conservative foreign office minister Sayeeda Warsi in protest at the Government's policy on Palestine, may have finally helped to bring about a shift in opinion among politicians.
It's too early to say, but MPs were queuing up to criticise Israel after the troops moved into Gaza in July, no doubt encouraged by hundreds - and in some cases over a thousand emails they had received. For some MPs it was the first time they had voiced any criticism of Israel.

