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down in recent days and how or whether they may be part after larger chinese surveillance program. just a few questions that congressional lawmakers are considering tonight, earlier senators leaving a classified briefing on the hill with you said it more questions than answers, despite learning that these aerial objects are not believed to be alien in nature. still the who what and the when remains unclear. >> i think the american people deserve to hear more from the president on all t...

Standardization. they never made sense and only time shown to work was on individual basis at a place like massachussetts general hospital where doctors knew how to wear them so we didnt have prospective randomized trials also most important thing i talked to dr. benjamin at duke who looked at schools and he was one proponent who said keep schools open. i said why? he said everything taken together opening a window and number 1 opening a window ventilation keeping kids accept rats, not the mask ...