xterm default is to fail to use available UTF-8 fonts

When "xterm" is started in its default out-of-the-box condition, i.e. without any command-line, .Xresources, or .[a-Z]*rc options, it should be able to display text in any of the available UTF-8 fonts, regardless of locale.

Install a range of truetype CJK and non-truetype CJK fonts and start gnome-terminal in a normal Ubuntu 13.04 Unity session. At the command-line, try viewing some foreign text in UTF-8,

 $ curl http://www.nhk.or.jp/ | lynx -dump -stdin

Notice how all of the characters are displayed by gnome-terminal. It should all work ok. If not, install more CJK fonts.

Start xterm at the command-line inside the gnome-terminal to ensure xterm is given the identical environment variables as gnome-terminal,

 $ xterm&

At the command-line in the xterm, try viewing some foreign text in UTF-8,

 $ curl http://www.nhk.or.jp/ | lynx -dump -stdin

What happens is that xterm displays the foreign UTF-8 text with little empty squares representing missing UTF-8 characters.