Sub to this channel to help my brother https://www. you tube. com/watch?v=lg71rzMoE28 delete the space between you and tube when u enter the link WILL GIVE BRAINLIEST

His is the name of the group in the house of representatives that, in 1947, began hearings to expose communist infiltration in american life. unfortunately, a good deal of the evidence they used was based on hearsay and conjecture, meaning innocent people were harmed by their findings.