Can't get attributes

gistfile1.js

define(["app",
// Libs
"backbone", "validator",
// Modules
// Plugins
"util", "plugins/jquery.cookie"
//"plugins/backbone.layoutmanager"
],

function (app, Backbone, Validator, Util, Cookie) {
    // Create a new module
    var User = app.module();
    User.Model = Backbone.Model.extend({
        // http://blog.opperator.com/post/15671431847/backbone-js-sessions-and-authentication
        urlRoot: '/api/session',
        idAttribute: "_id",
        defaults: {
            firstName: undefined,
            lastName: undefined,
            email: undefined,
            _id: undefined
        },
        initialize: function () {
            this.fetch({
                success: function (model, res) {
                    console.log("====after fetch=====");
                    console.log(model);
                    console.log(model.toJSON());
                    console.log("//====after fetch=====");
                },
                error: function () {
                    console.log("ERROR CALLED in user.js!");
                }
            });
            // {
            //  error: function(model, res){
            //    //TODO: I guess we have to catch this somewhere 
            //    // else because jQuery is still spitting out the 
            //    // error to the console
            //    // Just had and idea! Maybe instead of making backbone know if it is authed
            //    // we just catch the unauthorized and redirect backbone to the login
            //    // whenever it tries to acces a protected resource
            //    // ... I think the only edge case for this would be when we are trying to log in and we gen an unauthorized
            //  }
            // }
        },
        isLoggedIn: function () {
            console.log('ID IS-----');
            console.log(this);
            console.log(this.id);
            console.log(this.toJSON());
            console.log(this.get("id"));
            console.log(this.get("_id"));
            console.log(this.get("email"));
            console.log('ID IS-----');
            //return !this.isNew();
            return Boolean(this.get("id")); // !!
        },
        // not currently using this
        saveCookie: function (auth_hash) {
            $.cookie('user_id', auth_hash.id);
            $.cookie('access_token', auth_hash.access_token);
        },
        // not currently using this
        loadCookie: function () {
            this.set({
                user_id: $.cookie('user_id'),
                access_token: $.cookie('access_token')
            });
        }
    });
    // Required, return the module for AMD compliance
    return User;
});