1.   Experts disagree about the extent of the expansion of Tupac Amaru and Sendero Luminoso into the drug trade.

2.   Experts disagree over the age of the drawings.

3.   Many families face a time crunch, but experts disagree on the extent to which average working hours have increased.

4.   Technical experts will always disagree, erm there was a time when I too would claim to be one of them.

5.   Although some leaders of more liberal Cuban groups say they constitute a silent majority of Cuban exiles, experts disagree.

6.   American legal experts disagreed.

7.   And education experts disagree on how much school matters ought to be insulated from local politics.

8.   Arbitration experts disagreed.

9.   Beyond those generalities, however, even experts disagree over what sort of Russia Putin would build as president.

10.   Ad experts disagree.