nobody knows what point russians will revolt. but the only way to stop it is to defeat him in the battlefield. from russian history we know that russians tolerate suffering and ready to pay huge price for military victory. but every geopolitical defeat, every military catastrophe always lead to revolt and revolution in russia. so hopefully things will repeat this time. >> garry kasparov, we appreciate you being here tonight. as the u.s. response to russia's attacks on ukraine, no country is watching more closely than china, which has had long designs on taiwan and makes no secret of it. now with concerns about that threat going, the united states is beefing up forces in that region. earlier tonight i spoke with leon -- who spoke who served as defense secretary and the bomb administration. i asked him about the breaking news, the suspected chinese spy balloon. >> mister secretary, thank you