LONDON (Reuters) - Britain's top shares fell by midsession on Friday, with declines in commodity assets outpacing gains in defensive stocks as investors fretted ahead of U.S. economic growth data from the United States. By 11:44 a.m. BST, the FTSE 100 was 29.05 points, or 0.6 percent, lower at 5,284.90, having lost a modest 0.1 percent on Thursday. The energy sector was the biggest ... ...Read More