It would be covered in the USA by UL standards.
If cheapskate importers choose to sell unapproved CFLs then THEY should pay the bill. And be prosecuted and if necessary placed in insolvency and completely shut down.
OTOF the twit who buys a CFL without a valid safety mark can expect what he gets.
Increasingly. and especially in the EU, IEC standards for electrical safety should make such problems extinct.
Graham