The members of the Council ... reasserted that no terrorist act can reverse the path towards peace, democracy, and reconstruction in Afghanistan.
See, that's just not true. Of course a terrorist act can do this. In fact, it has. Quite recently.
The correct word, instead of "can," ought to be "should." "No terrorist act should reverse the path towards peace..." Or perhaps, "may." The terrorists "can" reverse peace but they "may" not, because the Council forbids it and condemns it in the strongest possible terms.
"Can," by contrast, is awfully optimistic.