Unite union, which represents British Airways Cabin crew, began the first of five day strikes May 24 following a weekend of tumultuous talks that included gate-crashing protesters and the realization that a union representative had been tweeting about negotiations.
According to a CNN blog, once British Airways CEO Willie Walsh realized he’d been the subject of tweets, including “about to make another attempt to persuade Willie Walsh to stop trying for regime change and stop being vindictive,” chances of a last-minute deal were done.  The union representative later used Twitter to offer to apologize, which likely had union supporters rolling with laughter. 
With more tweeting and less negotiating, it’s unlikely the strike will end quickly. A BA spokeswoman said Monday the airline is running 50% of short-haul flights and 60% of long-haul flights from London's Heathrow Airport. Flights at Gatwick and London City are operating as normal.