1. The document aims to argue that using cell phones is not harmful based on a news story published on 26/4/2012. 2. The story cites a lack of evidence that cell phone use has negative health effects, but notes that further research is still needed according to one expert quoted. 3. The document evaluates the credibility of the news story by checking other websites and finds they report the same information, suggesting the story is reasonably unbiased.