I was told about this incident by a former ST journalist a few days ago and he told me that the contents could contain libellous stuff. IANAL, but I do not think there is anything like that though.
The problem with the ST, frankly, is that it had been shackled so much over the years that it really cannot serve as the Fourth Estate. But, who am I kidding? The ST as a Fouth Estate? Does it have what it takes? In today’s Singapore? Whatever for?