It was the armoured vehicles circling the Plaza Murillo – the normally tranquil central square in historic downtown La Paz – that initially set Bolivians on edge on Wednesday afternoon. By the time a phalanx of troops had marched on the presidential palace, the sense of collective confusion and shock was at fever pitch.
By 2.30pm, a small tank was repeatedly ramming the gates of the neoclassical building known as Palacio Quemado until troops forced their way in and, in an extraordinary…