that it was a large bomb which was set off from afar, and they targeted the exact timing of my convoy passing through the streets because all the explosion debris is directed at my car. >> reporter: when asked if thursday's attack marks the start of a new wave of terrorism in egypt, he replied, this is not the end but the beginning. so far nobody has claimed responsibility. al jazeera, cairo. >>> now, back in this country, walmart workers are protesting today in more than a dozen u.s. cities. workers say they want a minimum wage of $25,000 per year. they also want walmart to reinstate 20 employees. the workers claim they were illegally fired for participating in strikes back in june. walmart says the company has done nothing wrong. joining us now from los angeles is our jennifer london. jennif jennifer, i hear there have been a number of protests today and arrests as well. >> reporter: indeed there were, john. all in all 21 people were arrested today.