This frame grab from a video shows lightning inside a huge tornado on May 22 outside Joplin, Mo. The tornado tore a path across southwestern Missouri, then slammed into Joplin, ripping into a hospital, crushing cars like soda cans and leaving a forest of splintered tree trunks behind where entire neighborhoods once stood.
Article source: http://feeds.nytimes.com/click.phdo?i=bd41050b98d71c44fd1b592696dcbcfa