A lawsuit against the Houston energy company Cobalt International Energy has posed a question which is not often considered under the Foreign Corrupt Practices Act—what does contradictory due diligence mean? There are also ancillary questions of what must a company disclose about possible issues of corruption and when must it do so? These questions arose in the continuing saga of Cobalt and drilling rights it secured in Angola in 2010. Cobalt had engaged a local third-party partner, who turned out to have been owned by Angolan government officials. The company later severed its relationship with the local third party.

Thomas Fox has practiced law for over 40 years. Tom writes the daily award-winning blog, the FCPA Compliance and Ethics blog and founded the Compliance Podcast Network. Tom leads the discussion on AI in...