His critical comments to the joint parliamentary committee on human rights came as the House of Lords began debating the second reading of the controversial justice and security bill, which introduces limited disclosure of sensitive intelligence material in civil court cases.
Five more, led by Ohio and Florida, are introducing limits this year, while another seven are to have them in effect by 2007.
The governing party then introduced limits on corporate campaign financing, which would prevent his companies from bankrolling candidates.
But as this week's meeting of 150 nations in Kyoto, Japan, has made clear, introducing limits is far from straightforward.
'In recent years the Academy has introduced limits on lobbying of its members, but there is pressure for a further overhaul of the system.
The law would introduce limits on the ownership of media by a particular company, or individual, and so defend the nation's media from monopolists like Silvio Berlusconi.
Snowball No. 4: There are already so many guns in circulation in the United States, and their owners are so determined to keep them, that introducing limits would have no practical effect.
Complicating matters, the United States Department of Transportation decided in December to reinstitute caps on the number of flights per hour during peak times at Kennedy and to introduce limits at Newark.
Being the first country to introduce limits on how bonuses can be paid could make it more difficult for British banks to compete for top managers and may prompt people to move elsewhere to avoid the rules, some analysts said.
The video games show's organiser, the Entertainment Software Association, introduced limits on what models could wear in 2006.
