Hat tip to JAP for mentioning this in a blog comment and to Jade for mentioning it in his blog.  Thank you both. 

FBI uncovered Russian bribery plot before Obama administration approved controversial nuclear deal with Moscow

".... 

Federal agents used a confidential U.S. witness working inside the Russian nuclear industry to gather extensive financial records, make secret recordings and intercept emails as early as 2009 that showed Moscow had compromised an American uranium trucking firm with bribes and kickbacks in violation of the Foreign Corrupt Practices Act, FBI and court documents show.

They also obtained an eyewitness account — backed by documents — indicating Russian nuclear officials had routed millions of dollars to the U.S. designed to benefit former President Bill Clinton’s charitable foundation during the time Secretary of State Hillary Clinton served on a government body that provided a favorable decision to Moscow, sources told The Hill.

The racketeering scheme was conducted “with the consent of higher level officials” in Russia who “shared the proceeds” from the kickbacks, one agent declared in an affidavit years later...."

http://thehill.com/policy/national-security/355749-fbi-uncovered-russian-bribery-plot-before-obama-administration