[header] How to protect your rfid enabled passport [title] Determine if your passport has an rfid chip in it. [step] If on the cover there is a rectangle with a circle and a line through it, then it definitely contains an rfid chip and can be read from a distance. [title] Decide if you want to merely be passively cautious, actively protect your data, or permanently disable the rfid chip in your passport. 
[title] If you want to be cautious : [substeps] The passport cover will provide some shielding to the rfid chip inside. However, it does no good if it is open.