You hear the instruction over and over: Don't give out your passwords, to anyone. You might expect that people would know better than to ask for them "unless, as it turns out, you" are being interviewed for a job.

The ACLU is warning that some prospective employers are asking applicants for their Facebook usernames and passwords so they can have a look around, as part of the interview process. Its an invasion of privacy for private employers to insist on looking at peoples private Facebook pages as a condition of employment or consideration in an application process, ACLU attorney Catherine Crump said in a statement