The Pope has attacked Marxism as well as unfettered capitalism on his visit to Brazil. But the ghost of Marx has positive as well as negative connotations for Christians and social justice campaigners concerned with inequity.
Book-lovers in Edinburgh have been contemplating everything from Aesop's Fables to Judge Dredd - and they have raised volumes for Christian Aid's anti-poverty struggle, as well as adding volumes to their shelves.
Kenyan religious leaders are backing demands by civil society groups that those standing in parliamentary elections scheduled for 2007 should commit themselves to salary reductions, accountability and transparency.
President Luiz Inacio Lula da Silva of Brazil's has said that his country will bypass the commercial patent on a crucial anti-AIDS drug manufactured by Merck, the US pharmaceutical giant, in order to ensure that those who desperately need treatment can get a cheaper, generic Indian-made version.