Deep anger over the apparent massacre of 43 trainee teachers has plunged Mexico's Enrique Pena Nieto into his worst crisis as president, but with no credible opposition in sight, mass protests look unlikely to force him from power.
Since the students were abducted by police and handed over to a local drug gang in the southwestern city of Iguala on Sept. 26, a wave of discontent has hit the government, spurring calls at protests and on social media for Pena Nieto to step down.
Pena Nieto has accused unnamed groups of trying to destabilize the government but the public . . .
