mario sepulveda, that most exuberant of men, is on heavy medication. oldest miner, mario gomez, finds it impossible to sleep. and alex vega? he can't explain why he's doing it, but he's building a wall around his house. >> vega ( translated ): whenever i hear a noise, i get scared and look all around me. my heart beats faster. i can't go into small spaces. i'm taking five or six pills a day now. if i don't take them, i can't sleep, and i wouldn't even be able to sit with you. >> simon: all but one of the 33 men, doctors say, have suffered severe psychological problems since the accident. and the miners complain they're not getting the quality medical care and benefits they need and were promised. 19 of them have already lost their disability payments. sebastian piÑera is chile's president. a couple of the miners told me that they feel like they're soldiers, they're heroes during the war. and when the war is over, they're forgotten. >> president sebastian piñera: well, that's part of life. that's part of human nature. they were heroes. they will always b

. >>> uno de ellos mario sepúlveda, vendió su historia, y recorcorre el mundo como motivador, e inaugurófue un momento para rf recibir del desierto la fuerza para seguir adelante. >>> la buena noticia, este mes se espera que el gobierno chileno, entregará á a 19 de 33 una pensión, para que se puedan jubilar, la demanda se sigue peleando en tribunales es increíble josé. >>> angie, muchas gracias. >>> con eso otra breve pausa, atacan a balazos, y con granadas, una cárcel en monterrey. >>> y la reacción de la policía, de la >>> empezamos el segmento en méxico, raúl torres, detalles de la renuncia de un departamento de policía entero, por miedo al crimen organizado, raúl adelante. >>> así es josé, 26 policías, en chihuahua, renunciaron, luego de 3 compañeros, fueron asesinados fr y todos son amenazados, están cerca de la frontera con estados unidos, y se trafica arma y droga, el ejército se encargará de la seguridad, y ayer jueves, a la noche, tres camionetas, hombres armados atacaron un penal, dispararon armas, y lanzaron granadas, 6 heridos, y aunque no se sabe quién cometió el ataque, la

one of those miners was mario sepulveda, considered the emotional leader of the group, this is him aed mine. you're studying english. this is him today still full of energy but still haunted by the events that transpired. mario and three other miners were in washington, d.c., for the grand opening of a new smithsonian exhibit, a tribute to the men who survived and those who helped them do it. "there are things there that bring out a lot of spiritual feelings" mario says. "it was emotional." >> this is the place where science and technology meets the human spirit. >> reporter: the exhibit takes you back to the harrowing weeks that take place a year ago today but for those who lived it the road to recovery has been a challenge. reports have surfaced many of the miners are struggling to assimilate. some remain unemployed, some have taken low paying jobs to feed their families and some have gone back to mining while others are reportedly unable to work due to psychological distress. "they said we were millionaires, and with that description we've had a lot of problems. i have to leave th