"I've learned in my years as a journalist that when a politician says 'That's ridiculous' you're probably on the right track"

This quote by Amy Goodman suggests that when a politician denies something, it is likely to be true. This is due to the fact that politicians often try to cover up the reality or spin it in a way that is more beneficial to them. As a journalist, Goodman has actually learned that when a political leader denies something, it is most likely to be true and worth investigating even more. This quote encourages journalists to be relentless in their pursuit of the reality and to not take a politician's denial at stated value. It also works as a pointer to the public that political leaders may not constantly be informing the reality and that it is very important to be critical of the details they get.