You are asking for examples of the denunciations, the señalamientos, that can affect the safety of the activists. Here is one example: a threatening e-mail was sent to several organizations in Colombia, social organizations, some of which we have been personally accompanying for a number of years. The e-mail, which arrived on March 11, 2008, threatened “death to the leaders of the march for peace, the guerrilleros, and their accomplices”. This March 11 e-mail was signed by the Black Eagles, who describe themselves as the new generation of paramilitary forces. According to the message, the threat was justified because the organizations helped to plan the demonstration that had taken place five days earlier, on March 6, in a number of regions in Colombia and around the world. The march was intended to pay tribute to victims of state and paramilitary crimes. The threats came against a background of señalamientos, public accusations. In the weeks before the march, a presidential advisor, José Obdulio Gaviria, had, on a number of occasions, accused those organizing the march of doing so in the name of the FARC, thereby associating the organizers with the rebel group and exposing them. In the weeks following the demonstration, several of the organizers were murdered in various parts of the country. Some of them were union leaders.
On June 4th, 2008. See this statement in context.