JERUSALEM (Reuters) -Israeli Foreign Minister Gideon Saar accused unnamed European officials on Thursday of "toxic antisemitic incitement" he blamed for a hostile climate in which the fatal shooting of two Israeli embassy staffers in Washington took place. Israel has faced a blizzard of criticism from Europe of late as it has intensified its military campaign in Gaza, where humanitarian groups have warned that an 11-week Israeli blockade on aid supplies has left the Palestinian enclave on the brink of famine.