Our 'liberal' media at work

Did Fox News alter footage of a conservative rally?

Why is this headline phrased as a question?
The correct construction is exclamatory:

Fox News altered footage of a conservative rally!

The note at the end of the article concedes that...

At the tail end of Sean Hannity's show Wednesday night, at approximately 8:55 p.m. EST, the Fox News host had the following message concerning the controversy:

"Although it pains me to say this, Jon Stewart, Comedy Central, he was right... It was an inadvertent mistake but a mistake nonetheless.”

Apparently this admission that Jon Stewart & The Daily Show were right in noting that Fox & Hannity had faked the footage wasn't relevant enough for the folks over at Yahoo Newsroom to change the headline!

p.s. free advice for Fox News (worth every penny!): if in fact it was an "inadvertent" mistake to merge 2-month-old video with current, you might want to adopt a better filing system!