Schools, government buildings, and elected officials’ homes in Springfield were among the targets of more than 30 hoax threats made last week that forced evacuations and closures.

Last week’s presidential debate thrust Springfield, Ohio, into the national spotlight, prompting people to wonder how a Haitian community has taken root there — and why. Here’s a look at some key questions,

Businesses needed workers, and Haitians, many already authorized to work, heard living costs were low. But the newcomers have strained resources, and that has fueled tension.