The mainstream media in the West has the attention span of a hyperactive chihuahua. If you cast you mind back -oh, about three months ago, you'll recall there was some kind of disaster in Japan and something about nuclear reactors melting down. But then the Arab Spring came to Egypt and threatened to topple a key American ally in the region, not to mention one of the pillars of Israel's security regime. Suddenly nuclear meltdowns were old news. Then the situation in Egypt stabilized somewhat and the West decided to intervene in Libya. But even with NATO air support the Libyan rebels couldn't deliver headline grabbing victories, and then Osama bin Laden got assassinated, and Libya was forgotten.
You can't blame the news organizations, really. They can only afford a limited number of millionaire celebrity correspondents and even Anderson Cooper can't be two places at once!