the two syrians caught because their car had a punctured tire. what the police haven't said so far is if these two men with syrian passports had the visa that allows them to be here illegal and pass through europe's borders illegal. the investigation continues and police say expect more arrests and a high level of vigilance during the celebrations here today. >> nic robertson, thank you so much. two days now until the cnn gop presidential debate. terror and u.s. security will be top of the agenda. this is coming as many woned which of the candidates is best suited to keep the country safe. eric bradner joins us now. i want to get to the cnn/"the new york times" poll that shows 69% of americans believe a terror attack is likely in the coming months. to put this in perspective, 78% of americans thought the same thing just after 9/11.