A TfL spokesman claims it's easy enough for passengers to rethink their journeys to avoid the Northern Line during rush hour:
"For example, if you get the Tube at Clapham North to Stockwell just to transfer to the Victoria Line maybe you could instead walk as it would only take 10 minutes.
"Or could you start your journey 10 minutes earlier to avoid the crowds?"
More top news
London Underground claims unions refused to discuss a revised pay offer.
Lutfur Rahman was also ordered to disclose detail of income and expenditure.
10 years on, George Psaradakis has given his first interview, recalling the events of July 7 2005.