Farmers Thormar Eller and Henny Hrund go to check their livestock as an ash cloud is seen in background, near Kirkjubaearklaustur, approx. 260 km from Reykjavik, Iceland, Monday, May 23, 2011. A dense... more 
Farmers Thormar Eller and Henny Hrund go to check their livestock as an ash cloud is seen in background, near Kirkjubaearklaustur, approx. 260 km from Reykjavik, Iceland, Monday, May 23, 2011. A dense cloud of ash from an Icelandic volcano was being blown toward Scotland Monday, forcing two airlines to cancel their flights, U.S. President Barack Obama to cut short his visit to Ireland and carriers across Europe to fear a repeat of the huge disruptions that stranded millions of passengers a year ago. (AP Photo / Brynjar Gauti) ( AP Photo/Brynjar Gauti ) less 
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Associated Press
Mon, May 23, 2011 4:14 PM EDT