21.   But some industry experts wondered if ConocoPhillips would have any advantage over competitors or would be greater than the sum of its parts.

22.   But some experts wonder if it would just create two monopolies.

23.   But some experts wonder whether automatic enrollment actually represents unauthorized paycheck deductions.

24.   But some experts wonder whether in the long run Water Joe will generate more bemusement than revenue.

25.   But some industry experts wonder how many people will actually make movies.

26.   Critics warn that the debt load will rise even more in the next decade, and some experts wonder whether students and their families fully understand the financial risks.

27.   Even as Russian engineers devise ways to repair the battered Mir space station, some experts are wondering if it should continue to be used.

28.   Even now that service has improved, it is still so inadequate that some transportation experts wonder whether civil rights laws are being violated.

29.   Experts wonder if he will be able to make the transition from news to police dramas and sitcoms.

30.   Experts wonder if the program, however well-intentioned, would do much to bring more children into school in impoverished countries.