Must tackle logjams before boosting investment: Merkel

German Chancellor Angela Merkel rejected criticism from her SPD challenger on Sunday that she was neglecting the country's infrastructure, pointing to already increased investment levels and capacity bottlenecks in some parts of the economy. SPD leader Martin Schulz has accused Merkel of making empty promises about Germany's economic and political future as the former president of the European Parliament set out his own plans to boost investment and enhance European unity.