Yseribus: The real problem is that a lot of people think mesira no longer applies. That the halacha was repealed and stricken from the law books.
You know the deal, America, 21st century, new era, goldene medina, out with the old in with the new, things are different here, dawn of a new era where unfashionable halachos that are disagreeable with our modern sensitivities and how we think the goyim will perceive them and our practicing it makes it necessary to declare them obsolete (with some sophisticated sounding pretext, of course.)
Frankly, it is no different than the Reform/Conservative approach.
To those with any intellectual honesty, please cite real examples of when the prohibition against mesira would be applicable in America today.