title: iphone+FaceBook acess token expired error
body: <p>i am using two url to get the information of nearby areas by passing current lat-long.
  The two urls are :-</p>
  
  <p>1) <a href="https://graph.facebook.com/search?type=Hospital&amp;center=72.000,23.000&amp;distance=100000?access_token=" rel="nofollow">https://graph.facebook.com/search?type=Hospital&amp;center=72.000,23.000&amp;distance=100000?access_token=</a></p>
  
  <p>2) <a href="https://graph.facebook.com/151116474914629" rel="nofollow">https://graph.facebook.com/151116474914629</a></p>
  
  <p>Now it is showing me the proper result .But then it is showing me the below error:-</p>
  
  <p><strong>{
     "error": {
        "message": "Error validating access token: Session has expired at unix time 1325840400. The current unix time is 1325842498.",
        "type": "OAuthException"
     }
  }</strong></p>
  
  <p>How to get over this..
  Please help me</p>