I'm not sure how reasonable this comparison is. In the US several of the things listed are total non events, such as a "7-11 in FL evacuated for a suspicious package" or "suspicious white powder found in CA" or "service disrupted at NY subway station - police on scene"...but nothing has come of any of those incidents.
However, the only incident listed on the entire continent of Africa is for militants attacking a natural gas facility.
In South America, one of the three reports is for someone being killed at a political rally.
Do you really think the reporting is equal?