Who did McCarthy accuse of having a communist element that would bring an end to his investigations?

the practice of denying employment to entertainment industry professionals believed to be or to have been Communists or sympathizers. Not just actors, but screenwriters, directors, musicians, and other American entertainment professionals were barred from work by the studios

Explanation:

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: