If someone is capable of doing stuff that flame is doing, he/she might as well do it in 2 months time. The thing is we are unaware of the exact capabilities of

If someone is capable of doing stuff that flame is doing, he/she might as well do it in 2 months time. The thing is we are unaware of the exact capabilities of the author of the code, so it can be a very intelligent person doing it in a few weeks or a group of smart people doing in a few years. But the problem with later is that the more people know about it and the longer it takes to make such malware, the higher are the chances of a pre release leak, or some double agent doing his work. So one or two very intelligent people doing it in very small time make more practical sense for a covert mission.