Mexico's position on The Fund for Peace's Failed State Index worsened, chiefly due to increased violence and human rights abuses, and uneven economic development.
It's 2011 ranking is 75.1 and 93rd place (of 177), vs. 76.1 and 96 place in 2010, meaning a worsening on both indicators. (Worst country? You guessed it)
For more, see the Fund's Interactive Grid here.
(El Universal erroneously refers to the organization as "Foundation for Peace")