Cucumber+Capybara+Selenium not keeping session

cucumber.rb

# Edit at your own peril - it's recommended to regenerate this file
# in the future when you upgrade to a newer version of Cucumber.

# IMPORTANT: Setting config.cache_classes to false is known to
# break Cucumber's use_transactional_fixtures method.
# For more information see https://rspec.lighthouseapp.com/projects/16211/tickets/165
config.cache_classes = true

# Log error messages when you accidentally call methods on nil.
config.whiny_nils = true

# Show full error reports and disable caching
config.action_controller.consider_all_requests_local = true
config.action_controller.perform_caching             = false

# Disable request forgery protection in test environment
config.action_controller.allow_forgery_protection    = false

# Tell Action Mailer not to deliver emails to the real world.
# The :test delivery method accumulates sent emails in the
# ActionMailer::Base.deliveries array.
config.action_mailer.delivery_method = :test

config.gem 'cucumber-rails',   :lib => false, :version => '>=0.3.2' unless File.directory?(File.join(Rails.root, 'vendor/plugins/cucumber-rails'))
config.gem 'database_cleaner', :lib => false, :version => '>=0.5.0' unless File.directory?(File.join(Rails.root, 'vendor/plugins/database_cleaner'))
config.gem 'capybara',         :lib => false, :version => '>=0.3.5' unless File.directory?(File.join(Rails.root, 'vendor/plugins/capybara'))
config.gem 'rspec',            :lib => false, :version => '>=1.3.0' unless File.directory?(File.join(Rails.root, 'vendor/plugins/rspec'))
config.gem 'rspec-rails',      :lib => false, :version => '>=1.3.2' unless File.directory?(File.join(Rails.root, 'vendor/plugins/rspec-rails'))
config.gem 'factory_girl',     :lib => false, :version => '>=1.3.2'

env.rb

ENV["RAILS_ENV"] ||= "cucumber"
require File.expand_path(File.dirname(__FILE__) + '/../../config/environment')

require 'cucumber/formatter/unicode' # Remove this line if you don't want Cucumber Unicode support
require 'cucumber/rails/rspec'
require 'cucumber/rails/world'
require 'cucumber/rails/active_record'
require 'cucumber/web/tableish'

require 'capybara/rails'
require 'capybara/cucumber'
require 'capybara/session'
require 'cucumber/rails/capybara_javascript_emulation' # Lets you click links with onclick javascript handlers without using @culerity or @javascript
require 'shoulda'
require 'factory_girl'

Dir.glob(File.join(File.dirname(__FILE__), '../../spec/factories/*.rb')).each {|f| require f }

Capybara.default_selector = :css
Capybara.current_driver = :selenium

ActionController::Base.allow_rescue = false

Cucumber::Rails::World.use_transactional_fixtures = true

if defined?(ActiveRecord::Base)
  begin
    require 'database_cleaner'
    DatabaseCleaner.strategy = :truncation
  rescue LoadError => ignore_if_database_cleaner_not_present
  end
end

World(Util, Domain::CYN, Domain::WakeUpCall, Domain::ActionAgreements)

nsbg.feature

@nsbg @javascript
Feature: NSBG
As a partner I can choose Needs, set a Satisfaction Level for each 
Need, set a Priority for each Need, and Share my current Satisfaction Levels
with My Partner


Scenario: Choose Needs
  Given I'm logged in

nsbg_steps.rb

# Saw this in, yet does not work ...
# http://blog.mindtonic.net/using_authlogic_with_cucumber
# https://github.com/mindtonic/AuthLogic-Cucumber-Steps/blob/master/step_definitions/authentication_steps.rb
Before do
  include Authlogic::TestCase
  activate_authlogic
end

Given /^I'm logged in$/ do
  Factory.create(:user)
  visit('/')
  click_link 'login-tab'
  within("#new_user_session") do
    fill_in 'user_session_login', :with => 'santiago'
    fill_in 'user_session_password', :with => 'santiago'
  end
  click_button 'user_session_submit'
end

user_factory.rb

Factory.define :user do |u|
  u.login 'santiago'
  u.password  'santiago'
  u.email '[email protected]'
  u.password_confirmation 'santiago'
  u.active true
end

user_sessions_controller.rb

class UserSessionsController < ApplicationController
  ...

  def create
    @user_session = UserSession.new(params[:user_session])

    if @user_session.save!
      # it does get here ...
      p "it gets here!"

      # ... but no redirection is performed
      redirect_to :controller => "home"
    end
  end

  ...

end