Supporters and opponents of the Los Angeles protesters see the prominence of the Mexican flag in different contexts.

The homemade green-and-white flag in Springfield showed that the environmental cause had broad appeal. Lanphier High was in a working-class part of the city, the North End.

For 90 years, every July, the St. Mary of Carmen Festival parades along a green, white and red line in the middle of Adams Street. Friday morning, the stretch of the street only had a yellow line, ...