| Answer | Crossword Clue |
|---|---|
| DNA | Modern ID form |
| DNA | Modern ID verifier |
| DNA | Modern means of ID |
| RINGTONE | Modern caller ID, perhaps |
| SSN | Form of ID |
| SIGNATURE | Form of ID |
| SSN | Tax form ID |
| SSN | Tax-form ID |
| SSN | Form 1040 ID |
| LIC | Form of ID: Abbr. |
| DNA | One form of ID |
| SSN | One form of ID |
| SSN | ID on an IRS form |
| SSN | ID on an I.R.S. form |
| SSN | ID in the form "xxx-xx-xxxx" |
| SSN | ID entered on every I.R.S. form |
