Bachelet's silence

Kenneth Bunker has an article in El Mostrador about Michelle Bachelet's silence about her future plans. Who would've thought saying nothing could cause such political consternation?

The basic point is that her popularity means that silence blocks potential Concertacion candidates from coming forward, and brings criticism from the right that her silence means avoiding discussing her failures.

I've written before that I'd like to see an analysis of presidents who come back after a term or more away. Given her sky high approval rating when she left office, she would be hardpressed to keep it up. But the presidency is always mighty tempting.