Why are highways the new site of protest?

Washington Post reporter Emily Badger asked this question and put together an excellent response, that includes the ways highways sliced through black neighborhoods in the 1960s, the way they act to separate white and black communities, and their key role in moving traffic and commerce.  To demonstrate on a highway is make a big noise, in an important location.

In a fascinating way, making highways a site of protest helps us see the many ways in which they are part of the urban system, not an extra-territorial space for moving quickly.  Wonderful analysis!