11.  And it puts humans in uncharted waters.

12.  As Addison suggests, uncharted waters could prove to be treacherous.

13.  As they plunge into the uncharted waters of the impeachment trial of a modern president, senators are uncertain about what lies ahead.

14.  Asked to officiate this dispute, Judge Margot Botsford will be wading into uncharted legal waters.

15.  As they consider the uncharted waters of the impeachment trial of a modern president, senators are uncertain about what lies ahead.

16.  Attempts by nations to bring foreign rulers to justice for crimes against humanity are excursions into uncharted legal waters.

17.  According to Mike Hellon, former chair of the Arizona Republican Party, McCain is also in uncharted waters.

18.  But although he said he feels like his old athletic self, the duration of his remission is unknown since he and his doctors are in uncharted waters.

19.  But in doing so they are exploring relatively uncharted legal waters.

20.  But Olerud, Boone, Ichiro and the rest of the Mariners are in virtually uncharted waters.