hearing specialists appear to have the least amount of work-related stress. and also include in the top five of most stressful jobs? well, newscasters have it. although a lot of folks in the control room, trust me, have much more of a stressful job. welcomine -- well, coming u at most weddings, only the bridal party is required to rehearse, but even london's royal guard is polishing its famously precise moves. itn brings us a rare look at the foot soldiers of they warm up for the royal nuptials. >> some like the cold stream guards play. others march and guard. but on the day of the wedding, most of the military personnel will become street liners. but unlike members of the public, it's not just a question of lining the street said the