Leaders of Russia and China snub Brics summit in sign group's value may be waning

Russia and China are not sending their leaders to a Brics summit starting in Brazil on Sunday in what may be a sign that the group's recent expansion has reduced its ideological value to the two founding members. China's 72-year-old leader, Xi Jinping, has attended Brics summits for the past 12 years. No official reason has been given for sending the premier, Li Qiang, other than scheduling conflicts. Russia's president, Vladimir Putin, is facing an international criminal court arrest warrant and may have decided not to travel to Rio to avoid embarrassing the summit hosts, who are signatories to the…