41.   But he said improvements in safety and anti-theft systems are making the cars more attractive to customers, and he sees a resurgence in sales of performance models.

42.   But in the real world, others said, the market would only rise if the Social Security system made regular, dependable stock purchases.

43.   But if successful, the system could make Internet purchases as easy as ordering from a catalog over the telephone.

44.   But organizations that promote Internet privacy worry that the system will make it impossible for people to use the Internet without revealing their identities to businesses or government agencies.

45.   But other voice-recognition systems routinely make errors even under ideal conditions.

46.   But safety experts question whether even the most advanced systems could make air travel disaster-proof.

47.   But the system also makes provision for the human touch.

48.   But this system makes it too easy to enter such a technically demanding field in the opinion of Carlo Fodera, owner of Technical Tattoo supply.

49.   By enabling the users of the product to work in real time, the new systems make sure the businesses are on the same page as they do transactions.

50.   By offering the promise that even the smallest states could tip the balance in close elections, the system made it impossible to ignore them.