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