Explosive devices were widely used by the Israelis in a broad campaign directed against German scientists working in Egypt in 1962 and 1963. A bomb placed in a gift parcel exploded, killing scientist Michael Khouri and five others with him, and an attempt was made on the life of Dr. Hans Kleinwachter, another scientist. Another package addressed to a West German scientist working in Cairo blew up when opened, blinding his German secretary. The daughter of German scientist Dr. Paul Goerke was threatened with a similar fate.

There were still other bomb varieties in which the Israelis excelled. Prior to the June 1967 war, the Chief Intelligence Officer in the Gaza Strip and' the Egyptian Military Attache' in Jordan were both killed by book bombs. In the wake of the 1972 Lydda Airport massacre, the Palestine Popular Front's spokesman, Ghassan Kanafani, was blown up when a plastic bomb attached to the exhaust of his car exploded.