Original sentence: Protests have been scheduled leading up to and during the summit.The initial critique of the organizers focuses on the role of multi-national corporations and the dominance of financial interests in the global economy.The protesters generally feel that neo-liberal policies of world economic and political leaders are to blame for the rampant speculation leading up to the global financial crisis, the degradation of the environment, and worsening social and economic inequality.These demonstrations follow those against the July 2009 G-8 meeting in L'Aquila, Italy, those during the last G-20 meeting in London, anti-NATO protests in April 2009, and other prior demonstrations against the G-8, International Monetary Fund and the World Trade Organization
Edited sentence: It is estimated that 4,000 police officers will be needed, and the city currently only has 900 police officers.Mayor Luke Ravenstahl is also attempting to alleviate problems by meeting beforehand with some of the protest groups.Thousands of protesters are expected during the week of the summit, and the Pittsburgh Police are coordinating with the United States Secret Service as well as over 100 police departments in nearby cities