Errors and Corrections

From a July 11th post on this blog, extracted from an email from me to my brother:

"Its not brave to get on a bus or a tube train (when have terrorists repeated themselves either geographically or tactically in this current campaign?) per se."

Oops.

What have I always told myself about definitive statements? It seems the only blanket concept that holds true is the more we know, the less we know.