Can information travel faster than light?

In an experiment published in May 2000 (PRL v 81 n 21) wave packets
are observed to propogate faster than the speed of light by tunnelling
through barriers at rates faster than light would propogate through
vacuum over the same distance.

This is not a surprising result (if quantum mechanics is not
considered surprising) unless the wave packets can carry information
thus allowing information to travel faster than the speed of light.

The authors state "the question as to whether a wave packet can be
considered a signal is a much debated and complicated one." Does
anybody know any of the content or current status of this debate?

resummation

.