I noticed that all the "summaries" in Yahoo News Digest are simply pieces of articles copied and pasted from another website. Isn't this violating the copyright of the real article?
EDIT: If I am not wrong, the app was first created by a teenager who wrote a script which automatically made the summary of any article. Assuming that he wasn't able to pay the newspapers for replying all the articles on the app and also that the script simply took some paragraphs from the article without changing any word, how was it possible for him not to infringe the copyright?