The Cold War period is a period in which the US and the USSR had lot of tensions, threatening, competition in pretty much everything. This period lasted until the fall of the Soviet Union at the beginning of the 1990's, thus we can not say that that was a reason for US intervention in Latin America during the Cold War as after the fall of the Soviet Union there was no more Cold War.
The US have a long history of interventions and meddling in Latin America, and it is hard to find a nation in which they haven't intervened, sponsored certain groups, or at least tried to do some of that. That has resulted in lot of despise toward the US in Latin America among the ordinary people, as the majority of their interventions were ending up with military conflicts and cracked economies, setting up dictators as leaders of these nations as well.
Robert Kennedy was attorney general during his brother John F. Kennedy's administration.
As attorney general, he fought organized crime and was a key supporter of the Civil Rights Movement.
In 1953 Kennedy became an advisor to the Senate Subcommittee on Investigations under Senator Joseph McCarthy. Kennedy left the position just six months later, objecting to McCarthy’s unjust investigative tactics.
In 1960 Kennedy managed brother John’s presidential campaign. When JFK was elected, Robert was made U.S. attorney general and became one of JFK’s closest cabinet advisors. When JFK was assassinated in 1963, Robert resigned as attorney general the following September and announced his intent to run for a senate seat.
In 1968 Kennedy ran against Eugene McCarthy in the presidential election primaries. On June 5, 1968, following his victory speech at the California Democratic Primary at the Ambassador Hotel in Los Angeles, Kennedy was shot several times by gunman Sirhan Sirhan. He died the next day at age 42, his promising presidential administration over before it began.