German Chancellor Angela Merkel has signaled unease over the prospect of a possible speech by Democratic presidential hopeful Barack Obama at Berlin's historic Brandenburg Gate, a spokesman said Wednesday. Merkel has "only limited understanding for using the Brandenburg Gate as an election campaign backdrop, as it were, and has expressed skepticism about pursuing such plans," Thomas Steg, a spokesman for the chancellor, told reporters. However, Steg stressed that the chancellor is "very happy" for Obama to visit Germany and meet her and Foreign Minister Frank-Walter Steinmeier. Berlin city officials said this week that members of the Democratic candidate's campaign had... ...