sentences:  Los Angeles will host the Summer Olympics for the third time in 2028.After the murder of Israeli athletes by Palestinian terrorists in Munich (1972), the significant financial debts of Montreal (1976), and boycotts, few cities by the late 1970s were willing to bid for the Summer Olympics.Only two cities (Tehran and Los Angeles) made serious bids for the 1984 Summer Games, but before the final selection of a "winning" city in 1978, the bid from Tehran was withdrawn as a result of Iran's policy changes following the Iranian Revolution and a change in the country's ruling system.