Ravi Prakash is a Curiosity Entry, Descent, and Landing Systems Engineer. He explained how Curiosity will land on Mars, and why they've changed things since Spirit and Opportunity landed. Part 2, below, continues after a Google+ hiccup. This one started rough due to a variety of technical issues; I recommend skipping ahead to the 6-minute mark.
Here is the animation that we were trying to share and narrate: