Which country is possibly involved in the attack?

American media say the United States is investigating possible Iranian involvement in a recent attack in the Iraqi city of Karbala. Five American soldiers were killed in the attack. The media are reporting comments of unnamed United States government officials.

Since then the Glastonbury Festival has gone from strength to strength--in 2004 one hundred and fifty thousand fans attended, paying ~ 112 for tickets to the three-day event. Tickets for the event sold out within three hours.