Journalists no longer have to be hooked to a huge live truck to go live. At the 2012 Republication National Convention, it was common to see journalists, especially TV journalists using LIVEU packs to go live instead.
The packs use cell phone connections to transmit Hi-Def signals.

We use these routinely for live shots at NY1 here in new York. But I often worry if there are long term health effects from all the radiation right next to you rather than 30 ft in the air?