Used to be that people beleived that Jews killed Christian children in ritual ceremonies to drink their blood. Common beleif here up to the 20s. This stuff is from same stable. Interesting you say that it is a 'left leaning' newspaper as if that lends it credabiility! Anti semitism is common among the left, usually thinnly disguised as 'anti Zionism' but of course the same characters do not work themselves up into a paroxysm over other regimes in the region like Syria and Iran which of course unlike Israel regualrly murder and torture leftist opponents.