Complex sentence: After the crash, the United States Army Air Forces and a congressional committee headed by then-Senator Harry S. Truman investigated the B-29 programme issuing a scathing report, prompting the Army Air Force to take over the programme.
Split into simpler sentences: After the crash, the United States Army Air Forces and a congressional committee headed by then-Senator Harry S. Truman investigated the B-29 programme. The latter issued a scathing report, prompting the Army Air Force to take over the programme.