The Huffington Post has a Mexico topic that has some excellent articles in English on our situation here.
The following is a must read on the 43 missing students.
In searching for these missing students, the police (and federal police) started looking at places where it would seem someone may have dug up the dirt recently. In so doing, they found countless stashes of dead bodies (but not the ones they were looking for). As they continue to look, we keep seeing every couple of weeks another clandestine burial site with unknown bodies.