BERLIN (Reuters) - All parties negotiating a new bailout for debt-strapped Greece agree that private creditors should be involved, but the details of how that would happen are still under discussion, Germany's finance minister said. (http://feeds.feedburner.com/~ff/reuters/topNews?d=yIl2AUoC8zA) (http://feeds.feedburner.com/~ff/reuters/topNews?i=xQcoVdzhENA:2koOsSJOu7c:V_sGLiPBpWU) (http://feeds.feedburner.com/~ff/reuters/topNews?i=xQcoVdzhENA:2koOsSJOu7c:-BTjWOF_DHI) (http://feeds.feedburner.com/~r/reuters/topNews/~4/xQcoVdzhENA)