Because the Pentagon threatened to kill independent journalists, that’s why! For those of you who missed it, check out the this article :

The Pentagon has threatened to fire on the satellite uplink positions of independent journalists in Iraq, according to veteran BBC war correspondent, Kate Adie. In an interview with Irish radio, Ms. Adie said that questioned about the consequences of such potentially fatal actions, a senior Pentagon officer had said: “Who cares.. ..They’ve been warned.”

And for those of you who think they’re bluffing, let’s not forget that the Coalition forces bombed Iraq’s state-run TV and killed BBC reporter Terry Lloyd :

Immediately the allied tanks started heavy firing directly at us. Rounds were coming straight at the Jeep, smashing the windows and puncturing holes in the bodywork. Then the whole car was on fire. We were enveloped in flames. It was terrifying. I’m so angry that we were fired on by the allies. The Iraqis must have been their real target but I’m sure they were surrendering and anyway they were all dead within minutes.