Scrums Minister of Veterans Affairs Jean-Pierre Blackburn commented on the security costs for G8 and G20 summits. Bloc Québécois leader Gilles Duceppe and NDP Leader Jack Layton commented on the security costs for G8 and G20 summits and on the potential for a coalition government. Liberal MP Mark Holland commented on the security costs for G8 and G20 summits. Environment Minister Jim Prentice commented on environmental issues and the upcoming G8 and G20 summits.