You're missing the point . Calling out demands action. Action will have consequences. Why didn't USA called out paki nukes ?? It wanted paki in the lap. USA knew about our missile program including SLBM! Which posses a threat to USA as nuclear submarines with nuclear missiles can reach across the globe!! Still not an utterance of discomfort?? USA knows that nuke deal was a farce !! It was simply accepting that they can't control indian nuke program so why hinder relationship. Same thing applies to an unclaimed test. When you claim you actually challenge others and then they are forced to respond whether they want or not , whether they can or not! If we claim we force USA to respond, if we don't what USA gains from making an enemy out of India other then praise by some libtards!!! Let's have a case study Consider yourself to be USA high ranking official. You just learned that on an island in Indian ocean there was an earthquake of 7-8 richter scale. Few hours letter you learn it was a MT blast. But indians are quite. You talk to Indian ambassador he calls it just another earthquake. But he also reminds you about 100 billion $$ trade , he talks about weaponary he is interested in worth some 30 billion $$ over next decade or two. Finally he ditched you to meat the Russian ambassador What would you do?? Team up with China to call India out and start an era of enmity??( You are not even sure what chinese will do??) Chinese already know that India had the capability they already know that they are targeted by Russian and Americans MT warheads and they trade even more with India than USA !! They probably want USA India to fall apart for now and deal with India separately later. Since India didn't claim chinese are not directly challenged either , besides telling chinese people that India has MT warheads hanging over their heads is not a smart move anyway!! UK has been promised a trade deal in future. France is offering additional rafale to Carry the warhead and Russian have already confessed their eternal love to new delhi . Germany and Japan are concerned but Indian told them very clearly this was just an earthquake. Now calling out India will also give pakistan an excuse to test higher yield weaponary. China will be happy for that. India could also go rouge and start supplying nuke tech to Iran or Vietnam. How do you sanction a 3 trillion $$ economy . That has never happened in the history of the world before!! Usually 2 trillion plus is considered as great power and are UNSC members considered beyond any sanctions. Even in UNSC Russia will veto sanctions france might abstain. Or you could simply tell to everyone concerned that it was an earthquake only!! Of course they will find out later but no one would care by then !! How much do we care for history today anyway. Think carefully and take it lightly it is all hypothetical after all.