What were joseph pulitzer and william randolph hearst well known pioneers of?

Engaging in a style of publishing called yellow journalism.

Explanation:

William Randolph Hearst, from the New York Journal and Joseph Pulitzer, from New York World were pioneers of a journalist style that emerged in the late 1800s called yellow journalism. The main characteristics of this type of newspapers were exaggeration, dishonesty and sensationalism. Its goal was to catch people's attention.

arresting and exicuting citizens

the hollywood film industry of 1950 was threatened on several different fronts. television broadcasting was rapidly becoming the dominant entertainment medium in the united states. the paramount anti-trust consent decree requiring separate ownership for production companies and theater chains had gone into effect on 1 january 1950. large numbers of young men and women were marrying, having children, and moving to the suburbs, which affected the viability of downtown first-run movie theaters. foreign revenues were endangered by protectionist tactics including quota systems, high taxes, and blocked funds. finally, the morality and patriotism of hollywood films and filmmakers were under attack from government, religious, and citizens' groups.

explanation: