Boko Haram militants are suspected to be behind Monday's bombing of a high school in northern Nigeria, killing at least 47 and injuring nearly 80. President Obama says he sees growing momentum behind a US free trade deal with Asia as he landed in China on the first day of an eight-day Asia tour. Mexican President Enrique Pena Nieto is condemning violent protests against the state government of Gurerro over the massacre of 43 students ordered by a corrupt mayor and drug cartel. The G20 nations are looking to impose new capital requirements on the world's largest banks to prevent a repeat of the 2008 banking crisis. Multiple "darknet" sites connected to Silk Road 2.0 may have been seized by US and EU law enforcement after having their locations revealed by denial of service attacks.