https://www.nytimes.com/1972/12/02/archives/letterbombs-mailed | Patriotic Talk Channel

https://www.nytimes.com/1972/12/02/archives/letterbombs-mailed-to-truman-in-1947-truman-was-sent-bombs-book.html "The so‐called Stern gang" of Zionist terrorists tried to assassinate President Truman by letter‐bomb in 1947, according to a new biography written by Mr. Truman's daughter. https://en.wikipedia.org/wiki/Zionist_political_violence
1947 Letter bombs sent to the Truman White House by Lehi. January 5-6, 1948 The Semiramis Hotel bombing, carried out by the Haganah (or, according to some sources, Irgun) resulted in the deaths of 24 to 26 people.