device: (sneezes) theraflu. the power is in your hands. happening now, germany marks 30 years since the fall of the wall. >> you sigh angela merkel there. she's taking part in the ceremonies tofrmtd it happened in 1961, marked the split between east and west and was lined with watch towers, electric fences, and armed guards. in 1989 people on both sides chips away at the wall that divided their city. frederick pleitgen is there. frederick, who's there today? >> reporter: obviously the leaders of germany, angela merkel as well, and central