because haugen knows the significant influence facebook has over its billions of users wo around the world. >> misinformation, angry content is enticing to people and -- >> very enticing. >> -- and keeps them on the platform. >> yes. faceb facebook realized that if they change the algorithm to be safer, they will click on less ads, they will make less money. >> haugen is also expected to be grilled on facebook's role in the deadly insurrection. her team which was reportedly charged with helping to protect the democratic process, that was actually the -- the formal description. and reducing, again, quoting, the spread of viral misinformation and fake accounts was dissolved last december. and then, obviously, the deadly insurrection came after that. she told "the wall street journal" that she was, quote, dismayed when facebook publicly played down its connection to the violence despite widespread internal concern that its platforms were enabling dangerous social movements.