Why are there many suicide explosions taken place?

The head of Iraq’s government says that a series of suicide bombing is designed to create chaos in that country and prevent progress toward elections that is scheduled for next year. Prime Ministry Nuri Al-Ma-liki called yesterday’s terrorist attacks cowardly.The five explosions killed more than 125 people and in jured more than 440 others. The bombings all took place within minutes of each other Tuesday morning. They targeted several government buildings around me capital city of Baghdad, as well as a neighborhood in a busi ness district.