DAKAR, Senegal — Chad’s government has foiled an attempt to destabilize the country and undermine the constitution, the government spokesman said in a statement.The accused were all military except for one human rights activist, Baradine Berdei Targuio, who was charged with breaching national security and the illegal possession of weapons.In October, Chadian security forces opened fire on anti-government demonstrators in the country’s two largest cities killing at least 60 people.“There are people not happy with the current government and its handling of (the) transition,” said Rida Lyammouri, senior fellow at the Policy Center for the New South, a Moroccan-based think tank.“What’s interesting is that those accused of the plot are mixed of military and human right officials, something that is not very common when we talk about an attempted coup,” he said."