Cannot get second Passport authentication (when not calling /login) to work.

Login and Get curl requests

$ curl -i --data "email=joe@user.com&password=password" http://localhost:3000/login
HTTP/1.1 200 OK
X-Powered-By: Express
Content-Type: application/json; charset=utf-8
Content-Length: 260
Set-Cookie: connect.sid=s%3A9b4c4dMSkSiSEex%2BOgtsXBsu.BUoXyrHk95nvhAfDY3mkOIuk0I8npOhdAzMCc4WHnsA; Path=/; HttpOnly
Date: Tue, 22 Jan 2013 03:32:13 GMT
Connection: keep-alive

{
  "_id": "50f97e0b96d98bf0af000002",
  "email": "joe@user.com",
  "name": {
    "last": "User",
    "first": "Joe"
  },
  "language": "en",
  "is_email_confirmed": true,
  "created": "2013-01-18T16:53:31.068Z",
  "modified": "2013-01-18T16:54:38.368Z"
}


$ curl -i b "connect.sid=s%3A9b4c4dMSkSiSEex%2BOgtsXBsu.BUoXyrHk95nvhAfDY3mkOIuk0I8npOhdAzMCc4WHnsA" http://localhost:3000/accounts/50f97e0b96d98bf0af000002
HTTP/1.1 401 Unauthorized
X-Powered-By: Express
Date: Tue, 22 Jan 2013 03:32:57 GMT
Connection: keep-alive
Transfer-Encoding: chunked

server.js

var config = require('./config')
  , express = require("express")
  , path = require("path")
  , http = require("http")
  , mongoose = require("mongoose")
  , errorHandler = require("./lib/errors")
  , passport = require("passport")
  , LocalStrategy = require("passport-local").Strategy
  , user = require("./lib/users/service")
  , User = user.User;

var app = exports.app = express();

app.configure(function () {
  app.set("db_url", config.db[app.settings.env]);
  app.set('port', process.env.PORT || 3000);
  app.use(express.logger('dev'));  /* 'default', 'short', 'tiny', 'dev' */
  app.use(express.static(path.join(__dirname, 'public')));
  app.use(express.cookieParser());
  app.use(express.bodyParser());
  app.use(express.session({secret: "keyboard cat"}));
  app.use(passport.initialize());
  app.use(passport.session());
  app.use(errorHandler);
  app.use(app.router);
});

mongoose.connect(app.get("db_url"));

passport.use(new LocalStrategy(
  {usernameField: 'email'},
  function(username, password, done) {
    User.findOne({ email: username }, function (err, user) {
      if (err) { return done(err); }
      if (!user) { return done(null, false, { message: 'Email address not found.' }); }
      User.comparePasswordAndHash(password, user.password_hash, function(err, valid) {
        if (err) { return done(err) };
        if (!valid) { return done(null, false, {message: "Incorrect password"})};
        return done(null, user);
      });
    });
  }
));

passport.serializeUser(function (user, done) {
  done(null, user._id);
});

passport.deserializeUser(function (id, done) {
  User.findById(id, function (err, user) {
    console.log("err: " + JSON.stringify(err) + ", user: " + JSON.stringify(user));
    done(err, user);
  });
});

app.post("/login", passport.authenticate("local"), user.show);
app.get("/accounts/:userid", passport.authenticate("local"), user.show);

http.createServer(app).listen(app.get('port'), function () {
    console.log("Express server listening on port " + app.get('port'));
});

Note that in the /accounts/:userid route, user.show never gets called.