* US reaches 200 million vaccinations–vaccinating the rest may be tougher
* German Foreign Minister: de-coupling from China would be a mistake
* India reports new world record for highest rise in daily Covid-19 infections
* Pfizer-BioNTech Covid vaccine scientist says third shot is needed
* Russia arrests 1000-plus people during protests supporting Alexei Navalny
* Biden will propose 50% cut in emissions cut for US by 2030
* Analysts consider the risk of a US housing market crash
* 10-year Treasury yield down for second day, near lowest rate in over a month: