Reza Pahlavi, the exiled son of Iran's former Shah , urged European governments not to appease Iran's leadership, saying continuing to negotiate would only keep the current power system in place. "If you think you can make peace with this regime, you are sorely mistaken," he said during a press conference in Berlin on Thursday. "There will never be stability, even if a watered-down version of this system survives."  Europe faces a choice "between a dying regime that endangers us all and a free Iran," the 65-year-old said. "The regime has never been as fragile as it is now," he added. "It is a wounded beast." Pahlavi said there were no pragmatists or reformers among Iran's current leaders, saying they were simply "different faces of a regime." Son of Iran's last Shah criticizes West on Berlin trip To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Claiming that 19 political prisoners were executed by Iranian authorities in…