Discuss as:

Prisoners' uncomfortable march to Mexico jail

Federal police escort a group of prisoners toward a plane bound for an undisclosed location at the international aiport in Morelia, Mexico on August 21, 2012. Some 200 inmates serving federal sentences were transferred to federal prisons during an operation by the Secretary of Public Security (SSP), local media reported.

Follow @NBCNewsPictures

Sign up for the NBCNews.com Photos Newsletter