Oembed not rendering javascript widget, only text


I am using oembed in the Twitter API to embed a tweet widget. It gets the JSON response just fine, but it shows the tweet in text only, not the embedded widget response. The javascript that Twitter sends is not firing.

  <meta charset="utf-8">
  <title>Twitter Embed</title>

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>
<script type="text/javascript">


  {$.getJSON("https://api.twitter.com/1/statuses/oembed.json?id=133640144317198338&callback=?", function(data)
<body >
  <div id="target"></div>