The Cato Street Conspiracy was an attempt in 1820 to murder all the members of the British governments cabinet including the country’s Prime Minister, Lord Liverpool. The name comes from the location of the groups meeting house close to the Edgeware Road in London.

Altogether, they killed more than 2000 people.

The US government went to great lengths to try to assassinate Fidel Castro on a number of occasions. It even worked with the Mafia to “whack” the dictator.