Some people are naturally worried about losing wallet and the eventual hassle of replacing the lost card (http://www.uscis.gov/portal/site/uscis/menuitem.5af9bb95919f35e66f614176543f6d1a/?vgnextoid=b3f7ab0a43b5d010VgnVCM10000048f3d6a1RCR D&vgnextchannel=db029c7755cb9010VgnVCM10000045f3d6a1 RCRD), whereas others, including me, prefer to follow the law, in case I am suddenly asked to produce evidenc