This is important. This is handing control of the web and your web browsers to the media corporations; the ones who failed to bring you SOPA and PIPA and are trying to underhandedly force through other legislation undemocratically. By all accounts, they're not very nice people and tend to want to micromanage every aspect of your lives and charge you substantial amounts of money for the privilege. Their latest attempt?
According to the EFF...
Defend the Open Web: Keep DRM Out of W3C Standards
Update, 2013-3-21: you can take action against DRM at the W3C by joining Defective By Design's campaign.
According to Cory Doctorow...
What I wish Tim Berners-Lee understood about DRM: