sentences:  His grandson, Ehud Sprinzak (1940-2002) was one of Israel's foremost experts on counterterrorism and far-right Jewish groups.Sprinzak was elected to the position of speaker of the provisional parliament on 15 July 1948, a role in which he helped lay the foundations of Israel's parliamentarism.He was elected to the first Knesset in 1949 as a member of Mapai, and became the Speaker of the new body.