Rails 3 flash message problems

The following code in my application_helper.rb class either eats the
flash message or escapes it and does not display properly:

  # Outputs the corresponding flash message if any are set
  def flash_messages
    messages = []
    %w(notice warning error).each do |msg|
      messages << content_tag(:div, content_tag(:p,
html_escape(flash[msg.to_sym])), :class => "message #{msg}") unless
flash[msg.to_sym].blank?
    end
    messages
  end

I am not sure how to make it html_safe so that Rails 3 renders it
properly. No problems with Rails 2.3.8, but I had to mark the entire
method "safe_method" using rails_xss plugin.

Is there a rule to doing this kind of view sanitization?

Thanks.

Bharat

Rails 3 is html safe by default. You only need to use 'raw' if you
want it unsafe.

Sorry,
Did not ask my question properly. You are right, Rails 3 is safe by
default.

What I meant to ask is how do I fix the method shown above so that the
rendered HTML is not escaped and therefore displays properly?
Thanks.
Bharat

def flash_messages
    %w(notice warning error).each do |msg|
      concat content_tag(:div, content_tag(:p, flash[msg.to_sym]),
        :class => "message #{msg}") unless flash[msg.to_sym].blank?
    end
  end

in the layout: <% flash_messages %>