Some leading economists say bank rescues should come with tougher conditions, and that the industry is short on capital to cover losses.
With more people pushed into poverty, the probability of armed rebellions increases around the world.
Case against South Africa's ANC party leader was tainted by politics, but some say a private suit may follow.
The country has put steep tariffs on an array of goods. Seventeen of the world's 20 largest economies have broken recent promises not to take protectionist measures.
While French and British leaders have been high profile, the low-key German chancellor is getting credit for the summit's regulatory focus.
It charged the son of a former leader with laundering kickbacks and is investigating other prominent figures.
Ahead of G-20, German leader balks at more spending and more debt.
China's deep reserves and continued growth put it in a position of strength.