Transport commentator Christian Wolmar on the day's HS2 announcements:
At this stage #hs2 estimate of £33bn can only be a guess as it was made before detailed work on routes. Off to BBC News Channel at 8 30
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Scotland Yard said the male youths will appear in custody at Westminster Magistrates' Court on Saturday.
The family of Oliver Dearlove urged people to "think again" before using their fists, as the man who killed him began a six-year jail term.
London Fire Brigade took Southwark Council to court on four charges in relation to safety breaches at Lakanal House in Camberwell.