21.  But surgical experts interviewed said that the Columbia doctors were working in uncharted waters because of the rarity of the type of repair they made.

22.  But the administration is confident that public opinion is on its side as the country sails in uncharted waters of domestic terrorism.

23.  But the current budget impasse has lasted so long that it has taken the White House and Congress into uncharted waters.

24.  But this trip to the Final Four, for the native of Campbellsville, Ky., and for Minnesota, represents uncharted waters.

25.  California entered uncharted waters one year ago today, when it deregulated the electric industry and let an open market set competitive prices for power.

26.  Chodron suggests instead wading right into the uncharted waters with friendliness and curiosity.

27.  Clearly, Tryon is embarking on uncharted waters, and no other Tour pro has a life quite like this.

28.  Edison is in uncharted waters.

29.  Experts say that the summons Chirac received pushed a little further, testing uncharted legal waters.

30.  For all of the accolades for Kidd, he is also swimming in uncharted waters in these playoffs.