A friend send me this:

 

Operation Blackjack is a slideshow posted on England's Telegraph. No one has
 taken credit for posting it nor is there any logical explanation for it
 being there. It basically outlines the following steps in GRAPHIC detail:
 
 - Stage 1: Nuclear Terrorist Attack in London
 - Stage 2: Nuclear Terrorist Attacks in New York, Washington, Toronto,
 Mexico City, Los Angeles and Portland
 - Stage 3: Unelected world leader put into place with One World Government
 - Stage 4: Clamp down on all citizens, including RFID Marks being implanted
 in all
 
 Note that the slides contain the disclaimer that, "The events portrayed here
 are imaginary". However, Part 4 of the slide show hints at the serious
 nature of this slideshow!! Image 14 of Part 4 illustrates the "Mark" code
 that they will force those left behind to take:
 
 Blackjack -
  Part 4 - Telegraph
 <http://www.telegraph.co.uk/culture/4590866/Blackjack-Part-4.html?image=14>
 
 The "Mark" code for this "sample individual" reads as follows:
 
 74686973206973206e6f742073696d706c7920656e74657274 61696e6d656e74
 
 Seems innocent enough, right? WRONG. This is Hexadecimal String, a code used
 by computers that use 2 separate 8 bit bites to represent the characters in
 our alphabet. For example, the number 74 would be equal to a "t" and 69
 would be equal to an "i".
 
 So when you use a standard on-line Hexadecimal String converter and enter in
 this "innocent code":
 
 Convert Hexadecimal To String
  Online <http://www.string-functions.com/hex-string.aspx>
 
 This is what the "Mark" said:
 
 this is not simply entertainment??

 

 I find it curious that the two ?? do not always print, and that there is no
 double code for ? at the end yet it prints two anyway!
 
 The ascii code for ? is 3f yet there is no 3f in the entire string.
 Something is definitely strange here. Perhaps it is related to the ascii decoding program, or else this is more than just a simple ascii text string!

 

I think there may be invisible characters embedded in it. As you know, a lot of ascii characters are
 unprintable (the lower codes, like bell, etc). This would be one explanation for the string generating characters that are not visible in the  hex code, besides a bug in the conversion program itself.
 
 Just wish I had the expertise to tease them out of this. May be a date clue
 hidden in it. Or it might be a web address.