An expansive governing role for the G20, discussed Thursday by Britain's Gordon Brown, isn't passing the sniff test for many economists.
Pittsburgh will import police from surrounding areas and cordon off the downtown area to ensure the G-20 summit will run smoothly.
The world needs a system of governance that's neither unregulated nor stifled.
The group weathered this challenge, but the developing world needs more say in heading off future ones.
At Tuesday's UN meeting, Presidents Obama and Hu set down markers for what they expect to achieve at the December climate change summit in Copenhagen.
Two members of an alleged bomb-making operation with links to Al Qaeda, including a New York imam, were ordered held without bail Monday.
Japan, Australia, and Britain offered plans and urged action Monday to overcome divisions – mainly between rich and developing nations – and forge a global pact to cut emissions.
Amid a blitz of public appearances, Obama touts government initiatives in education and energy as part of an economic strategy.
Foreign leaders will look for American leadership and effectiveness at a full schedule of events this week. On Tuesday, Obama will attend UN Secretary-General Ban Ki-moon's meeting on global warming.