Death Star anyone? If you are looking for the next big laser thing, I give you this: "it is fired to produce  large laser beams several feet wide that are then combined and focused down onto a tiny spot..." That will, "tear apart the fabric of space." with 200 petawatts of laser power; "100,000 times the power of the world's combined electricity production."
Are you ready for Cyber War? ('Cause it's coming...)
Genetically modified mosquitoes designed to kill off their children before reaching maturity released into the wild.
Threaten to wipe Israel off the map, and for some strange reason, they consider a preemptive attack; you know, before you finish building your nukes. Go figure.