Complex sentence: The Army Corps of Engineers concluded in its report to Governor Bruce King of New Mexico that the principal cause of failure was differential settlement of the foundation beneath the dam wall, and the report commissioned by the Nuclear Regulatory Commission corroborated this conclusion.
Split into simpler sentences: The Army Corps of Engineers concluded in its report to Governor Bruce King of New Mexico that the principal cause of failure was differential settlement of the foundation beneath the dam wall. The report commissioned by the Nuclear Regulatory Commission corroborated this conclusion.