Opinion Around the world, a vital technology is failing. The list of reasons it cannot work are as long as Elon Musk's face when he checks his portfolio: criminals will use whatever software they like, just not known compromised software. They too would Protect the Children better with more money, but it's not about that, is it?The UK cannot be allowed to have even the smallest apparent success in breaking user security, as other countries will surely follow – the urge of the state to snoop on its citizens is as universal as it is corrosive