Row on tarmac an awkward G20 start for U.S., China U.S., China G20 talks begin with airport row

A Chinese official confronted U.S. President Barack Obama's national security adviser on the tarmac on Saturday prompting the Secret Service to intervene, an unusual altercation as China implements strict controls ahead of a big summit. The stakes are high for China to pull off a trouble-free G20 summit of the world's top economies, its highest profile event of the year, as it looks to cement its global standing and avoid acrimony over a long list of tensions with Washington. -- More...