With regards to your first question I was thinking the same thing so I did a quick search and found this post: <a href="https:&#x2F;&#x2F;queue.acm.org&#x2F;detail.cfm?id=1626175" rel="nofollow">https:&#x2F;&#x2F;queue.acm.org&#x2F;detail.cfm?id=1626175</a><p>Here he says:
&gt; <i>Six pieces of information can be stolen from the RFID chip on a U.S. passport: your name, nationality, gender, date of birth, place of birth, and a digitized photograph.</i>