This is the latest in a series on Iceland by Planet Money correspondent David Kestenbaum and Planet Money's Icelandic intern, Baldur Hedinsson. Here's more from their trip to Iceland.

This was supposed to be the beginning of what passes for spring in Iceland. But a volcanic eruption is coating much of the country in grey ash.

Already struggling to recover from Sunday's devastating tornado that killed more than 100 people, residents of Joplin, Mo., have more severe weather to worry about later today.

From the National Weather Service's Storm Prediction Center:

Kentucky Senator Rand Paul is seeking an exemption to conflict-of-interest rules. Paul is an ophthalmologist and he’s been performing eye surgeries for free at his Bowling Green practice since taking office. Senate rules prohibit members from being paid for other employment, but Paul is asking his colleagues to allow him to bill patients only to cover surgery expenses such as insurance. Paul continues to perform surgeries so he can keep his skills sharp.

Kentucky Republican gubernatorial candidate David Williams has hired a new campaign manager with ties to the Tea Party to run his statewide bid in the fall election.The campaign will be run by Luke B. Marchant, who currently serves as a special assistant to U.S. Sen. Marc Rubio, R-Fl., after working as the political director on the freshman Senator’s 2010 race.

Everybody loves a list. And lists, let's face, make it easier to set priorities, even for doctors.

So a group of docs who want to improve the quality and cost-effectiveness of primary care tinkered with some Top 5 lists for of dos and don'ts for pediatricians, family doctors and internists.

When two female Greenwood High School students decided to take their war of words to the next level and throw punches, the fight landed a Bowling Green woman in jail and the two girls in juvenile court. The fight was captured on video and uploaded to the website YouTube, where the adult can be seen smiling as she turned and looked at the camera, according to court records.

The remnants of the storm that devastated Joplin, Mo., on Sunday caused moderate damage in Calloway County early Monday morning and Monday afternoon. A Murray-based weather observer said the system that came through early Monday was a weakening straight-line wind storm left over from the same system that hit Missouri on Sunday. He said the highest winds were 48 mph. High winds knocked down trees and power lines.

"Egypt's ex-President Hosni Mubarak will stand trial on charges of conspiring in the deadly shootings of protesters during the uprising that ousted him," The Associated Press reports.

The wire service adds that the prosecutor-general's decision is "a major step in a country still rattled by protests and demands for justice."