6月20日，伊拉克北部库尔德地区埃尔比勒市一处警察训练营地遭到自杀性汽车炸弹袭击，当时大约有200多名该市新招聘的交通警察正在进行早晨例行的集合训练，结果至少15名交通警察被炸死，100多名警察受伤。外电报道如下：A suicide car bomber wearing a police uniform killed at least 15 traffic policemen and wounded 100 others Monday during morning roll call at a police headquarters in this oil-rich northern Kurdish city, the second such attack in as many days.
The bombing that ripped through the police facility was one in a series attacks, including at least five suicide car bombings that swept Iraq Monday. Authorities reported 37 people died in attacks nationwide in the ongoing militant offensive that has killed nearly 1,200 in less than two months.
On Sunday, a suicide bomber walked into a Baghdad kebab restaurant popular with policemen and blew himself up, killing 23 people, including seven officers.
Roll call表示“点名时间，点名，名单”，尤指在教室里或军事岗位上大声读出名单上各个人的名字，以确定谁在场或缺席。Roll call也可拆开来用，例如：call the roll in class（在班里点名）。