Any reporter or news professional going to the Persian Gulf would have a hard time bringing any personal weapons with him into the combat zone. Not to mention that the sponsoring news organization would have a fit if they heard about any of their people taking their own personal weapons into the war zone. And, once there, the rules of war would strip him of his "noncombatant" status once he took up arms. So planning what weapon you'd bring with you from the states is silly at best.
For the reporters who are traveling with the troops, the troops themselves are the protection. Having said that, if a reporter asked, I'm sure one of the troops would make sure a M16A2 was placed in a handy spot in the military vehicle the reporter was riding in. If things got REALLY bad, no one on our side is gonna object too loudly if the reporter uses a weapon to save himself or some of the troops. But, it's going to be more of a battlefield pickup thing than personally carried weapon.
For the reporters traveling on their own, a weapon is more likely to get them into trouble than out of it in this kind of situation. Their protection lies in staying out of the "wrong place" at the "wrong time." If they do run into the wrong people, they are more than likely going to be outnumbered and outgunned (even if they had a gun or two) and need to talk their way out of the situation, if at all possible. The possession of a weapon in those circumstances could be a death sentance.
A better option for places like Afghanistan, or bad areas of Russia, etc is for the reporters to hire trusted locals to act as drivers/interpeters, if not outright bodyguards. Even if not hired directly as a bodyguard, the locals know the area, know the language and should keep their guys out of trouble.
There are times when reporters do quietly carry guns, but it's a controversial and usually frowned upon practice in the trade.