OK maybe this is an over the top reaction from a litigious part of the world but it still does indicate that there is a significant risk factor with the mercury content of even a single CFL lamp. Remember that it is illegal to take anything that contains mercury on an aircraft, and I have been prevented from carrying cold cathode lamps with hand baggage. A bit strange if you think about it as almost all lighting on a plane is fluorescent!
Well, it was that incident –
for more see http://www.thebriefingroom.com/archives/2008/08/mercury_in_cfls.html
– that led to extensive CFL breakage testing by Maine state government,
and in turn more than confirmed the necessity of EPA stringent breakage recommendations that many had doubted, in fact tightening them further.
http://www.ceolas.net/#li19x