Sad as this crash is, I feel not more than a little annoyed that some are suggesting yet more regulation within the industry. With respect to weather minima, the rules are already in place.
Whilst weather is likely to be a significant factor in this crash, it hasn't yet been proven to be the case.
I'm surprised only one person seems to have picked up on the 'undamaged' tail rotor. It looks to me like the main rotor was probably under power at the time of impact and although the impact appears to be nose first, the tail rotor seems to have touched the ground and I'm surprised it appears to be unscathed. It's not as though the AW139 doesn't have a history of T/R problems.
Please, no more calls for more regulation - let's stick to, and if necessary, enforce the rules that are already in place.
JJ