Stimulus plans may trigger graft, warns FBI chief

The FBI is bracing for a wave of fraud and corruption cases stemming from the government's multitrillion-dollar effort to get the economy moving again, the agency's chief told Congress on Wednesday.

The expected surge in economic crimes will place further strain on an agency already stretched thin as it investigates mortgage fraud, terrorism and corrupt politicians, FBI Director Robert Mueller said.

"Our expectation is that economic crimes will continue to skyrocket," Mueller said.