I believe that this warning here serves as a comic relief. Furthermore, it could reasonably be that Guardian here follows somewhat common trend not to sit sile

I believe that this warning here serves as a comic relief. Furthermore, it could reasonably be that Guardian here follows somewhat common trend not to sit silently and subdue to terrorism threats but to at least display subtle retaliation. Or it was author's take at this while still getting published. Could be flat-out wrong on this one, though.