Info on an ongoing case with CEMEX, probably what DOJ is investigating:
"The Complaint alleges that throughout the Class Period, Defendants made materially false and misleading statements regarding the Company’s business, operational and compliance policies; specifically, Defendants made false and/or misleading statements and/or failed to disclose that: (i) Cemex executives had engaged in an unlawful bribery scheme in connection with the Company’s business dealings in Colombia; (ii) discovery of the foregoing conduct would likely subject the Company to heightened regulatory scrutiny and potential criminal sanctions; (iii) the Company lacked adequate internal controls over financial reporting; and (iv) as a result, Cemex’s public statements were materially false and misleading at all relevant times."
http://securities.stanford.edu/filings-case.html?id=106547