By JASON HOROWITZ A day after a horrific train crash in Spain killed at least 69 people, emergency workers and canine units looked for survivors and victims; a prime minister facing elections and fresh accusations about his government’s competency set up camp near the crash site; and victims’ identities began to emerge. More than 50 people were still in hospitals, officials said, with 15 in critical condition. Investigators focused on the role of train traffic controllers in Madrid in…
