Richard Tofel, ProPublica general manager, praised the substantive work that the nonprofit news organization has been able to produce, citing the coverage of health care for contractors in Iraq and Afghanistan. Yet Tofel noted that ProPublica could not alone fill the gap in investigative reporting brought on by dwindling newsrooms. Tofel also argued that the organization’s next big challenge will be to find a sustainable business model, so it can persist after the grant that began the project runs out.