There's a single viewer where you can see most, if not all of the available data, here:
http://seamless.usgs.gov/website/seamless/viewer.php
..but you can't alter sea level, and you need a fat pipe to the net or a big cache to really maximize the potential there.
If you download the data, Global Mapper will let you alter sea level and you can download a free demo from this link that will serve your basic needs without expiring, though you can only load 4 files at a time and export requires ingenuity unless you register, about $120 IIRC:
http://www.globalmapper.com/
Those two tools will take you a pretty long way, but if you want to get deeper into it, this is a site you need to get familiar with as well:
http://software.geocomm.com/index.html
Tons of free data, software, and a forum for questions.
If I wanted to start into GIS knowing what I know now, I'd start with the largest hard drive I could find, pull down 3DEM (good 3D viewing and for draping sat imagery over elevation models), MicroDEM (good for merging multiple elevation datasets), and Global Mapper good all around, sea level change and excellent slope analysis routine), then download the entire earth in the GTOPO 30 format as a base for reference. There's about 30 of the GTOPO datasets, at 16 megs apiece zipped up for download, and they'll take up 55 megs of drive space each, unzipped, for a total footprint around a gig and a half. Once you have those, you can do quick and dirty low res work for anywhere on earth, and download high res data as needed, from the first link in this post.
FNC's William Lingerie, acting like the typical reporter idiot with a poor choice of overdramatic words. Talking about how hot and smelly the shelters are, "These people are starving! Starving for information. They are dying! Dying to get out." Nothing to indicate that they were actually starving or dying, just miserable and scared.
Paige Hopkins is awful with her schtick, too.