Using a combination of the GDELT Global Knowledge Graph and the Internet Archive's Television News Archive, Kalev Leetaru analyzed national media discourse around Obamacare, including producing a sequence of heatmaps via the Global Knowledge Graph that chart the darkening stormclouds of public opinion.

For the first time, we can use sophisticated computer algorithms to transform the daily heartbeat of the news media into a visual window onto the national consciousness. Through the powerful lens of big data we now have a telescope to peer not at the heavens above, but at ourselves here on Earth…

Read the Full Article in Foreign Policy magazine.