Leaked spy cables obtained by al-Jazeera and the Guardian claim Israel has been trying to sabotage Egypt's water supply with water-sucking plants for decades. Once in place, the river Nile would begin to dry up. In fact it may already have done, according to one intelligence report, which claimed the plant can 'significantly reduce the volume of water that reaches Egypt'. Other cables reveal most of the spies' work is far from the glamour of Bond movies