a long time to human voices where the greatest challenge. because every voice is incredibly complex and unique they're almost impossible to fake. but in recent years enormous progress has been made. the combination of video footage and manipulated voices poses a huge threat. so what can we do to spot fakes luckily there are all kinds of tools and size available today that can help like truly dog media a verification platform co-developed by d.w. it lets journalists and activists jointly verify the authenticity of online content and many others are working on similar tools as well. germany's institute for secure information technology is developing software to spot fake news by analyzing text it's been fed hundreds of fake stories to learn how to spot words and phrases that often turn up in bogus articles. lab testing showed the software