The MPs called for other key reforms to be delayed and in its report cited the Police Superintendents' Association's view that "it feels like pieces of the new policing jigsaw are being put together in different places without having agreed what thepictureonthe box should be".
In November 2009 Newsweek put a picture of Sarah Palin in shorts onthe cover, sparking cries (including some from Mrs Palin) of politically motivated sexism.
The Commission is encouraging countries to putpicture warnings on cigarette packets which would feature photos of blackened lungs and from July this year tobacco firms will be banned from advertising at sporting events such as formula one car racing.
"The thing that really struck the science team about this image is that you would really be forgiven for thinking that NASA was trying to pull a fast one on you and we actually put a rover out in the Mojave Desert and took a picture -- a little L.A. smog coming in there, " he said.
The two-dimensional equivalent is known as Penrose tiling (see picture above), after Sir Roger Penrose, the mathematician who put this form of geometry on a formal footing.