The Unite union is warning that bus workers could take further strike action over their demand for a £500 bonus for working during the Olympics.
It comes as workers in 70 bus garages across the capital went on strike this morning. The current walkout is due to end at 3am tomorrow.
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John Cantlie, who worked for a number of Fleet Street newspapers, is thought to have been taken hostage in November 2012.
The union published a 'no show' league table for last year the worst offenders for cancellations.
Zalkalns was jailed in his native Latvia for eight years in 1988 after he admitted killing his wife with a piece of electrical equipment.