Photographer: Joe Raedle/Getty Images

Chipotle Served With New Subpoena as Criminal Probe Expands

  • Burrito chain says 2016 will be a ‘very difficult year’
  • On plus side, fourth-quarter earnings topped earlier forecast

Chipotle Mexican Grill Inc. received a subpoena expanding the scope of a federal criminal probe into a norovirus outbreak in California, renewing concerns that its food-safety crisis isn’t over.

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