The police by all means are bound by law to do their duty and are right on barring NASA followers from creating disorder around the airport. We all know that airports are restricted areas across the world, especially in this era when security people are battling terrorism.
Who knows, a terrorist may infiltrate the NASA mobs and create chaos. We have seen goons infiltrate demos and loot yet don’t want to learn. The world cannot stop just because one man arrived from the USA. Business must go on. The fact that they have vowed to defy the police order barring the said reception at the airport is a reflection of NASA’s defiant nature.