Scientists say low chlorine levels in Flint's water system during the city's water crisis in 2014 and 2015 led the bacterium Legionella pneumophila to proliferate, causing a deadly outbreak of Legionnaire's disease.
A police officer in Montreal guards the front of an apartment building, where Amor Ftouhi lived before traveling to the U.S. earlier this month. Ftouhi, a Canadian resident, is suspected of stabbing an airport police officer in Flint, Mich., on Wednesday. The FBI said it is investigating it as an "act of terrorism."
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Jeneyah McDonald looks over homework her oldest son Justice, 6, brought home from school while her youngest son Josiah, 2, drinks Kool-Aid from a bottle at their home in Flint, Mich., in February.
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The interior of the Flint water plant is seen on Sept. 14 in Flint, Mich. The city is still struggling to replace thousands of corroded lead pipes that tainted drinking water.
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