EU Parliament chief Schulz returns to German politics 

Germany's Martin Schulz said Thursday he would step down as head of the European Parliament and return to national politics, where speculation grew he could emerge as a challenge to Angela Merkel. The outspoken former bookseller will quit in January after four years in office, during which he became one of the European Union's most high-profile politicians and gave its assembly sorely-needed visibility. The bearded 60-year-old did not say if he would run for chancellor against Merkel, although h