Complex sentence: The mission, which (according to Federal Communications Commission (FCC) and the Special Subcommittee on Investigations of the House Commerce Committee) was financially subsidized, and to be filmed by CBS news, was aborted when the participants were arrested by the FBI.
Split into simpler sentences: The mission, which (according to Federal Communications Commission (FCC) and the Special Subcommittee on Investigations of the House Commerce Committee) was financially subsidized, and to be filmed by CBS news. It was aborted when the participants were arrested by the FBI.