A simple but powerful question for evaluating the quality of the news you read.
Let's examine an article from the Washington Post, published in December 2016. You can read the entire article on the Post's website.
The following annotations will illustrate how you could use the question "how do they know that?" to analyze the strength of this article.
This is the main claim of the article (first sentence):
"The Pentagon has buried an internal study that exposed $125 billion in administrative waste in its business operations amid fears Congress would use the findings as an excuse to slash the defense budget..."
The reporters cite a number of experts who have relevant expertise about this topic
This story uses a few eye-witness accounts, mostly of meetings: