In practice this can be very tough. The typical reaction I get in this sort of situation is that a sourced statement will (not can) be included until it is definitely refuted with another more convincing source.
On Sun, Mar 30, 2008 at 3:28 PM, Carl Beckhorn cbeckhorn@fastmail.fm wrote:
In other words, just because something was said by a reference doesn't mean we have to include it. We can simply ignore the reference.