GMR’s T3 airport terminal in Delhi is a hot topic of discussion on the internet and among twitteratis. Some love T3, many hate it, others don’t care. But when a leading corporate strategist-cum-commentator decided to up the ante and make a personal attack on group partriarch G M Rao, the group’s PR team got thinking. Last heard the group is seriously thinking of legal action on grounds of defamation. The message: there’s nothing called free speech on the Net.