The Huffington Post covered the news of Susan Rice, the US's ambassador to the United Nations, speaking about Syria to the UN. She talked about the humanitarian crisis and the difficulty of sending in foreign troops. This is the facts of what she said about foreign troops: "The consideration of putting U.S. or other foreign troops on the ground is premature, to say the least."
This was the headline of the article on the inside:
An accurate description of what she said.
But now look at what the Huffington Post made the headline for its "World" section, where most readers would first see it:
Hey, why use the original headline when you can make the US seem imperialistic and aggressive? Who cares that according to the HP's own reporter, the important part of the speech was that the US and other countries would not send troops? We've got an agenda to push here!
Based on the outside (more dishonest) headline, the HP commenters responded exactly the way the editorial staff wanted them to, attacking You-Know-Who: