Understanding America's homelessness crisis

Major cities are cracking down on homeless encampments. But why are so many people 'living rough'? Here's everything you need to know:
How many are homeless?
It's hard to determine with any certainty, but in January 2020, more than 580,000 people were homeless in the U.S. on a given night, with an estimated 226,000 of them sleeping outside, in cars, or in abandoned buildings. The 2021 numbers indicated an 8 percent decrease in homelessness, although that may be misleading: The pandemic delayed or suspended counts in half of the 400...