Dec. 20 is a national day of mourning in Panama in memory of the victims of the 1989 US invasion of the country. At the time, it was the largest invasion since Vietnam and the first after the fall of the Berlin Wall. In the US, it was heralded as liberating the country from dictator Manuel Noriega, a former US ally. But in Panama, many saw it as something much different. The victims of the US action are still demanding justice.