One would think that sweet little boy and all of those people who lost their legs would shake some people up!!!!
I get the impression that too much discussion of the particulars is not encouraged due to concern over copycats. Scavenged RC remote isn’t at all sophisticated in and of itself but it evades a countermeasure which is why it was used, imho. Injuries described, of presumed terrorist as well as victims suggest a directional design, ie shaped. As a result it really was not unsophisticated, despite involving a toy. There was thought and planning on a number of levels. These pitiful dweebs, lovers of American consumer goods and lifestyle, haters of actual Americans themselves, had handlers who knew what they were doing. This was no cobbled together internet-plan contraption.