A top European Union official says he's worried by a widening gap between the continent's financially troubled countries — mostly in the south — and the more prosperous ones to the north as a result of the debt crisis. Jose Manuel Barroso, the Portuguese head of the EU's executive Commission, said during a visit to Austria on Thursday that countries that are doing well "should show solidarity to the others." Bailing out the 17-nation eurozone's strugglers hasn't been popular in richer countries such as Austria.