Wow, I know they don't like Helen Thomas et al, but isn't that going a little too far?
The Boing Boing post where I originally saw this has an update as well:
In the Citizenship and Immigration Services' "Guide to Naturalization" (the official guide on becoming a citizen), the same omission is made in the sample civics questions (on page 64 in document):
80. Name one right or freedom guaranteed by the first amendment.
The rights of freedom:
- Of speech,
- Of religion,
- Of assembly and,
- To petition the Government
So either the flashcards come from the same source, or there's some kind of mini-conspiracy...