As my colleague Mark Finkelstein noted this morning, now that gay activists are unhappy with Barack Obama, CBS has dusted off the “far left” label and used it to describe those who are upset that the President has not done more to advance the gay agenda. Co-host Harry Smith on Thursday: “President Obama gets some pressure from an unlikely source, the far left....”

So when was the last time CBS even used the phrase “far left” to describe fringe groups beyond the liberal mainstream? A Nexis search reveals that the last time the phrase crossed the lips of a CBS reporter was five months ago. On Inauguration Day, anchor Katie Couric mildly described unnamed “people on the far left or far right who don’t want Barack Obama to succeed.”

And the last time the “far left” label was used by CBS to describe a particular person or group was more than two years ago. On the May 17, 2007 CBS Evening News, reporter Sharyl Attkisson was talking about an immigration reform bill: “It’s a complete reform of US immigration law as we know it, worked out by a bipartisan group of negotiators, including Senator Ted Kennedy, politically on the far left, and Saxby Chambliss on the far right.”

At least according to the data available from Nexis, CBS has never before referred to gay activists as “far left.” But now that they’ve criticized Barack Obama, they’re evidently outside what CBS sees as the mainstream.