Why was Cassius not in favor of Antony speaking at Caesar’s funeral? Why does Brutus overrule Cassius’ objections? Were Cassius’ fears unfounded?

answer in about 100 words,quickly!!

Cassius knew that Antony was a great orator. Therefore, he was reluctant that Antony be allowed to speak at Caesar's funeral as he could sway the mob against them by his power or oratory. However, Brutus overruled his protest by saying  that whatever Antony will speak, he will speak with their permission. It turned out that Cassius's fears were not unfound. Antony spoke to the mob in such an emotional manner that the mob turned furious against the conspirators of Caesar's assassination.