The Identity Project writes:
Changes in Greyhound business practices jeopardize the already-limited options for cross-country travel by people in the USA who don’t have, or don’t chose to show, government-issued ID credentials.
For local transportation, undocumented people who want or need to travel further and/or faster than they can walk can ride bicycles (although there have been proposals in some jurisdictions to require registration of bicycles and/or bicyclists), or use public mass transit (where it exists, and where fares can be paid anonymously in cash, which isn’t the case with some cashless transit fare payment schemes).
Long-distance travel options for people without papers are even more limited.
Read more on Papers, Please!
via Joe Cadillic