Is it just me, or do others think it is strange that "intelligence" identifies political or state leaders as terrorist targets? OK the various individuals are targets of all sorts of groups and individuals, but surely terrorist targets as we know them are large groups of Joe Public?
The world will keep spinning without a dozen or two of the head honchos just fine I suspect. Killing them off won't terrorize anybody except potential big cheese applicants.
HOWEVER, Great Wall of Sydney + closed subway stations = big trap for large numbers of people.