Interesting........\
JERUSALEM - British police told the Israeli Embassy in London minutes before Thursday's explosions that they had received warnings of possible terror attacks in the city, a senior Israeli official said.
Israeli Finance Minister Benjamin Netanyahu had planned to attend an economic conference in a hotel over the subway stop where one of the blasts occurred, and the warning prompted him to stay in his hotel room instead, government officials said.
http://www.freerepublic.com/focus/f-news/1438238/posts
Don't put too much stock into that; there have been later reports contradicting it.