{"id": 408358446203801600, "lang": "en", "text": "In 2008, Congress passed a law mandating positive train control systems for commuter and freight railroads,... http://t.co/x4i4B4GTbg", "urls": [{"url": "http://t.co/x4i4B4GTbg", "expanded_url": "http://fb.me/12Jd6165U"}], "user": {"id": 1072467470}, "id_str": "408358446203801600", "source": "<a href=\"http://www.facebook.com/twitter\" rel=\"nofollow\">Facebook</a>", "deleted": false, "hashtags": [], "retrieved": "2017-12-11--14-21-49", "created_at": "Wed Dec 04 22:13:35 +0000 2013", "user_mentions": [], "legacy_imported": true}