41.   While the questions persist, so does the work at the mountain.

42.   Yet the question persists whether the small colleges will prosper, even with all that help, enterprise and versatility.

43.   And questions persist about whether the operation ever will achieve its goal.

44.   But moral and ethical questions persist from opponents who say using the stem cells is exploitative, given their sources.

45.   But questions about it persist.

46.   Haunting questions persist.

47.   However, questions persist about the impact of seafood farms and the wholesomeness of their products.

48.   Nonetheless, questions persisted about the official explanation, because the department cleared the editorial only after the memo recommending its disapproval was leaked to the media.

49.   Questions persist whether the government can build a social safety net fast enough to handle the swelling unemployed or even come up with the money to build it.

50.   Questions persist, however, about whether labor causes problems such as uterine rupture, an uncommon but serious complication.