Tom Tancredo today makes a good point concerning why he won't take part:
"Can anyone imagine Theodore Roosevelt and William Howard Taft having a Republican primary debate in German or Italian in 1912? Of course not."
On politics (which ain't beanbag), conservative ideas and politics (in general, we should oppose any attempt to immanentize the eschaton), sports (when does football season start?), teaching and education (polished apples are welcome), and pop culture.