These findings reinforce evidence on the impact of smoke-free legislation from studies in North America and Scotland, which also showed a fall in hospital admissions for children with severe asthma attacks.

BBC: Childhood asthma 'admissions down' after smoking ban

Participants also examined and discussed case studies that illustrated some of the complexities involved in translating freedom information legislation into practice.

UNESCO: Communication and Information

"The ADA was a well-intended but very seriously flawed piece of legislation, " said Ed Hudgins, director of regulatory studies at the conservative Cato Institute.

CNN: Is the disabilities act working?