Now playing Next United Kingdom Businessman pays €759 for promoted tweet to criticise British Airways 03/09/2013
Now playing Next Mexico Are Mexico bus driver murders revenge for sex attacks on passengers? 03/09/2013
Now playing Next world news WHO says new meningococcal vaccine "acceptable" for use by UN organisations 03/09/2013
Now playing Next Syria Syrian rebels say new regime defector has evidence of old chemical weapon attack 03/09/2013
Now playing Next United Arab Emirates Dubai bomb threat woman used rolled-up cardboard to mimic explosives belt 03/09/2013
Now playing Next Russia Israel says ballistic "objects" detected by Russia radars were part of US missile test programme 03/09/2013
Now playing Next North Korea Former basketball star Dennis Rodman visits North Korea to see Kim Jong-un 03/09/2013