-All output written has been checked for authenticity. However, output
-can fail madway through for many reasons, and the resulting message may
+Unless the
+.B \-b
+option is set (which happens automatically if writing to standard
+output),
+.BR catsign 's
+output is
+.I not
+checked for authenticity until it has all been written. Even with
+.BR \-b ,
+output can fail midway for many reasons, and the resulting message may