By KELIN DILLON Former director of the Mexico City Metro Florencia Serranía’s summons to appear before the Mexico City Attorney General’s Office (FGJCDMX), which surround her involvement in May 2021’s lethal Line 12 metro accident that left 26 dead and more than 100 wounded, were canceled on Sunday, July 10, with the FGJCDMX citing the reasoning as “her human rights