This link seems to blame how transitory our society is for the decline of religions in the US--
Statistics on Religion in America Report -- Pew Forum on Religion & Public Life
9/11 certainly bolstered our patriotism as probably did also the killing of Osama bin Laden.
http://www.msnbc.msn.com/id/8410977/...ontinues-soar/
There seems to be something on the decline of morality according to the Gallup Poll but "morality" is a very difficult thing to really define.
http://www.gallup.com/poll/128042/am...ins-bleak.aspx The morality of the 1920s would be quite different from that of the 1880s or the 1980s or the 2010s.
Stalin, though, is probably the last person to look to for making a value judgment about anything having to do with ethics in the United States.