Complex sentence: In September 2006, the U.S. House Committee on Homeland Security held a two day long hearing on the subject of illnesses caused by post- 9/11 air quality and former EPA head Christine Todd Whitman was a frequent target of criticism.
Split into simpler sentences: In September 2006, the U.S. House Committee on Homeland Security held a two-day hearing on illnesses caused by post- 9/11 air quality. Former EPA head Christine Todd Whitman was a frequent target of criticism.