Will the new screening rules for airports, how will this affect people from Britain or France?

http://news.bbc.co.uk/1/hi/world/americas/8438803.stm

Nigeria, Pakistan, Syria, Iran, Sudan, Yemen, a lot of these people are currently living in many European countries and have nationalitys such as dual Pakistani and British.

Are all these people going to be screened the same way as if they left originally from Pakistan or because they have flown from Britain and have British citizenship they are just going to be treated the same as a normal English man?.

You have to remember a lot of extremists live in these countries who would just be willing to take a shot at the US. So if these aren’t involved, isn’t this just a plan that has failed?

Thanks for your answer
oops, With the new*