Heilemann on the Giffords Aftershocks

New York columnist John Heilemann appeared on MSNBC's Morning Joe to discuss some of the continuing ripples from the shootings in Arizona, from the level of political discourse to the dangers of hearing only what you want to hear.

On heated rhetoric and threats to politicians: "There is a climate that is leading to actual tangible threats."

On the web's ability to reinforce our prejudices and convictions:

Interviewing Minnesota governor Tim Pawlenty about Sarah Palin's "crosshairs" map: