I noticed a news article in the last 4 weeks in relation to new requirements, for any person applying for a work visa (E3/HB1 or 2, what ever).
A person is required to submit their, phone number, email, and user names of any social websites they participated in, during the last 5 years.
If a person has multiple phone numbers or emails during the last 5 years,they need to record it.
This is what was written at the time of press, it's more than likely it has been legislated by now.