Debian Japan and updates

[Paulo Henrique Baptista de Oliveira <baptista@cos.ufrj.br>]

	Hi Debian users,
	recently I download XFree86 3.3.3 from Debian Japan project. I'm asking
if is safe to install these packages? What about put a line in 
	/etc/apt/sources.list
	to point to Debian Japan?
	They seem to be very fast updating packages...
	Have a nice day,		Paulo Henrique