Former president, Bill Clinton, was spotted on the set of Hangover 2 in Thailand on Saturday. TMZ posted photos of Clinton filming a cameo on set and reported that extra security was brought in for the shoot. Before filming the cameo, Clinton spoke to Thai government officials and encouraged them to work towards policies that would cut the country’s greenhouse gas emissions. The former president also travelled to Vietnam this weekend and then to Taiwan. The “wolfpack” who starred in the first Hangover, Bradley Cooper, Zach Galifinakis, Ken Jeong, and Ed Helms will also be in the sequel!! Check out the pics TMZ caught after the jump…