On the power end, some years ago I noticed that every time there was an announcement on supposedly significant progress in ultra-capacitors, said line of inquir

On the power end, some years ago I noticed that every time there was an announcement on supposedly significant progress in ultra-capacitors, said line of inquiry seemed to "disappear". Probably not, but I started to wonder whether military/security agencies were moving in and sitting on these developments, in lieu of having an effective defense against weapons powered by them. Not just large-scale weapons, but anti-personnel weapons.