Mexico invites US experts to investigate helicopter crash

MEXICO CITY (AP) — Mexico has invited experts from the U.S. National Transportation Safety Board to investigate a helicopter crash that killed the governor of the western state of Puebla and her husband.
Mexico’s assistant transportation secretary says the invitation was made “to leave no doubts” about the Monday crash that killed opposition Gov. Martha Erika Alonso and her husband, ex-Gov. Rafael Moreno Valle.
Carlos Moran said Tuesday that the manufacturers of the helic