>> so you are advocating for specific identifiers for everything. >> and i think i heard this mister grant say he didn't have a problem with social security as a national identifier. you said the same thing mister robin and you did to misterrosensweig and i agree with you. everybody's got an identifier. if their name at the very least . but thename is not unique . there's a lot of, i out there so we need some type of a national identifier. i would think to make commerce work and i don't know why social security could be that the and i find it here. because it's not prominent anymore. >> using my social security number as an authenticator is as stupid as using the last four letters of my last name as my authenticator. it or the last four digits of my phone number which is another mobile phone numbers, now that they are mobile, everybody has one and it's probably the one you're going to be for the rest of your life, even if you the washington. >> personally, just as a matter of common sense, i think completely the idea that you would completely identify, eliminate any sort of unique identifi