Some critics have also questioned whether the program’s leaders would ever be able to produce quantifiable results, something that’s ‘difficult, given what they are trying to do,’ said Tara Maller, a former CIA military analyst and senior policy adviser for the Counter Extremism Project, a nonprofit organization that seeks to prevent terrorists’ use of social media. ‘While they can target the vulnerable audience they want to capture and provide counter-messaging, that is only one part of addressing the fight against extremism online,’ said Maller, who says she is broadly supportive of the new approach. But she said that other government agencies and social-media companies must work in tandem to ‘remove the horrific content . . . that is radicalizing individuals online every single day.