Mexico’s Institute of Social Security, which oversaw the day-care facility where 44 children died in a fire last week, removed its director in the state where the tragedy occurred, the state-run news agency Notimex reported. Arturo Leyva Lizarraga, director of the agency in Sonora state, was “separated” from the agency Wednesday to “facilitate the investigative process,” according to Notimex. Earlier in the week, two people who ran the day-care center resigned from government jobs they also held