These things seem to come in waves. Yet another large telco
is having problems with their DSL service. Telstra Australia
ADSL service went down about 9am local time (strange how these
always happen at 9am, just as the dayshift starts working).
Is this a trend, is there a common software fault or vendor
these outages have in common?
So, at what point does the Spidey Sense detect a pattern and wonder
if the Bad Guys know something we don't? This could also fit the
pattern of these ISPs going down and not giving us a solid reason
why...yes, I'm being a little paranoid, as I should be. 
John
Sounds like equipment/software upgrades done overnight that fall over as
soon as the gear is put under the morning traffic load to me...
-C