 <a href="http://www.msnbc.msn.com/id/44248387/ns/local_news-washington_dc/#.TlU4pzv-uRQ" target="_blank">National Parks Service spokesperson Bill Line said.</a> "They are going to do a structural analysis of the crack."</p>
<p>Despite the damage to the 127-year-old monument, a preliminary report from the NPS said it remains structurally sound. The organization also rejected a rumor, spread on Twitter, that the structure had tilted because of the earthquake.</p>
<p>Made of 91,000 tons of Maryland marble, th