Geithner to Propose Vast Expansion Of U.S. Oversight of Financial System

Treasury Secretary Timothy F. Geithner plans to propose today a sweeping expansion of federal authority over the financial system, breaking from an era in which the government stood back from financial markets and allowed participants to decide how much risk to take in the pursuit of profit.

The Obama administration's plan, described by several sources, would extend federal regulation for the first time to all trading in financial derivatives and to companies including large hedge funds and major insurers such as American International Group. The administration also will seek to impose uniform standards on all large financial firms, including banks, an unprecedented step that would place significant limits on the scope and risk of their activities.

Most of these initiatives would require legislation.