Washington, Aug. 9 -- The Russia sanctions bill passed by the US Senate on Friday, which authorises tariffs of up to 100% on India and four others for buying Russian energy, faces three obstacles before it can reach Donald Trump for signature - the US House of Representatives is in recess until August 31, a possible September vote could collide with a Trump-Xi Jinping summit, and a coalition of House Democrats and at least one senior Republican are working to strip the tariff provisions altogether. P10...