It's suspected that a suspected murderer in Great Britain fled the country while dressed as a muslim woman wearing the muslim full face covering Niqab. And now an order comes down that muslim women must show their faces at airports, so that their identities can be verified.
I'm a great fan of integration and am neutral (sometimes a bit negative because of liberal stupidity) on diversity. Diversity is good, but a lot of other values are more important than diversity, IMO.
On the veil, I've always thought that women should be allowed to use them, but when identity must be verified, then the veil must not be honored mindlessly. In fact, NOTHING should be honored mindlessly. So the veil must be lifted when identification needs to verified. If the woman wearing the veil is particularly conservative, then she may request that a woman perform the identity authentication. Similarly, in European societies, it is stupid immigration policy to give citizenship to people who have no intention of integrating. If they won't integrate, don't let them in. If they come in as guest workers, let them stay guest workers until they fully integrate. If it takes two generations to demonstrate true integration (i.e., wearing the niqab may be a sign of not integrating), then don't give them citizenship. That way, if they riot, you can deport them without the headaches of dealing with their citizenship.
Similarly, with U.S. immigration, actively enforce immigration laws, levy punitive fines on businesses that hire illegals (if there's actual and continuous punishment, they'll actively comply with the law, instead of winking at the law and allowing John Smiths [who are clearly illegals since they speak spanish and not english] to work). A wall may help. I doubt it'll help much though, so it's probably a waste, but active policing and unfriendly treatment of illegals coming across the Southern border will help as long as it's sustained.
Of course it won't matter. The Republican party bleats about illegal immigration, but it helps its big business partners (Meatpacking plants raided, illegal immigrant workers arrested) by ignoring the laws.
The meatpacking plant raids are a good start but that needs to be sustained. Continuous intelligence gathering, continuous raids, continuous arrests, and huge fines to the employing companies to pay for the effort, all of that will lead to fear and hiding in the illegal immigrant community. Jobs will open up for citizens, meat packing plants will raise payrates (Swift is doing it already), there will be an effect on the market as prices rise due to increased cost of production, but the costs of supporting immigrants in the public schools and emergency rooms of America offset the benefits to the economy of cheap labor.
Enforcing the law, but in a reasonable way, is always the way to go as long as the laws are reasonable. Some U.S. laws were clearly passed by morons (that's the liberals and mccain) and craven chickenhawks (that's the republicans).
U.S. immigration laws are stupid in policy in some ways, but they can be made to work if they're enforced, unlike DMCA and various Patriot Act related laws, they're not completely stupid at their core. European immigration laws I don't know enough to write about, but they're probably stupid in policy and possibly the immigration and integration issues can't be fixed until the laws are completely overhauled (the effect of decades of leftist stupidities in Europe).