From the Yahoo! article:

Pakistan blocked Twitter on Sunday, saying the website had refused to remove posts promoting a Facebook competition involving caricatures of the Prophet Mohammed.
“The website has been banned by the Ministry of Information Technology and the decision was conveyed to us. There was blasphemous material on Twitter,” said Mohammad Younis Khan, spokesman for Pakistan Telecommunication Authority (PTA).
“Both Facebook and Twitter were involved. We negotiated with both. Facebook has agreed to remove the stuff but Twitter is not responding to us.”

Facebook caved into the censorship request, but Twitter refused to do so. Why did Facebook cave? Fear. While the Left always falsely accuses the Right of “fear-mongering,” Radical Islam actually uses fear. Why else would the Left not speak out against Islam’s vile practices against Women? And children? And any and all “infidels?”

Perhaps they are afraid of what radical Islamists would do if anyone dared speak out against them? They see what happened when the Danish cartoons of Mohammed appeared in print, for example. They use the guise of political correctness and worshipping at the deadly shrine of multiculturalism to cover up the simple fact that they are cowering from the “religion of peace.” It’s time to stop cowering in fear as a deluded form of “tolerance” and “appeasement.”

Reaction to Pakistan’s free speech quashing move is not good, of course.!/RuwaydaMustafah/status/204208606130876417!/fispahani/status/204199867772440577!/AliDayan/status/204193345352896512!/marvisirmed/status/204185801104437250

Pakistanis are trying to bypass the ban.!/shivanginipatha/status/204215711772573698!/abhisar_sharma/status/204218215243583488!/munaeem/status/204218027405869056

Update: Pakistan retreats!!/TheNextWeb/status/204304671072985090

Pakistan restored access to Twitter after briefly blocking the microblog over “blasphemous” posts about a Facebook competition involving caricatures of the Prophet Mohammed.

The website was blocked Sunday by the telecoms authority on the orders of the IT ministry amid accusations it refused to remove messages about the Facebook contest.

But the Pakistan Telecommunication Authority (PTA) restored access to Twitter in the evening, several hours after it was cut off, said spokesman Mohammad Younis Khan.

The reason for the U-turn was not immediately clear. Khan said it was the IT ministry’s decision and he did not know why it had been taken, and no one from the ministry or Twitter was available for comment.