Deserializing more complex JSON with DataContractJsonSerializer

I have a JSON response from Facebook Graph API, that looks like this:

    {
  "name": "XXXXXX YYYYYYY", 
  "username": "XXXXXX.YYYYYYY", 
  "email": "[email protected]", 
  "location": {
    "id": "110507998976900", 
    "name": "Someplace, Somestate"
  }, 
  "work": [
    {
      "employer": {
        "id": "4647647894784698", 
        "name": "Some Employer"
      }, 
      "location": {
        "id": "7489468976968988", 
        "name": "Someplace, Somestate"
      }, 
      "position": {
        "id": "4876498697859795", 
        "name": "Boss"
      }, 
      "start_date": "0000-00"
    }
  ], 
  "id": "1895789769789679", 
  "picture": {
    "data": {
      "url": "https://fbcdn-aaaaaaa.net/aaaaaaaa/458768_484784776868_4875876876_q.jpg", 
      "is_silhouette": false
    }
  }

I inherited code that deserializes the response, but I added the more complex fields like location, work and picture into the request, and now the JSON deserializer throws an error.

I have a wrapper class that uses DataContractJsonSerializer.ReadObject(), and a data contract class that looks like this:

[DataContract]
    public class FacebookMe
    {        
        private string fbId;
        [DataMember]
        public string id
        {
            get { return fbId; }
            set { fbId = value; }
            } 
...

I tried adding the 'work' field first as a string, (that's when the errors started) then as a Dictionary. So far I've had no luck and I'm running out of ideas. Any suggestions?