Christian Reber sold Wunderlist to Microsoft for a sum that was reported to be between $100 million and $200 million only to watch the company shut it down.
If Russia were to have used chemical weapons, it would signal a major escalation of its botched invasion of Ukraine, which has stalled after more than a month.
A Ukrainian delegation warned U.S. officials in Washington this week that security assistance packages are not arriving quick enough in the besieged country.
The U.S. strategy seems to be to "bleed Russia dry" and hope for a regime change in Moscow, but Niall Ferguson said this is a "very hazardous" strategy.
Despite being at the center of the the largest military conflict in Europe since World War II, Russia's natural gas continues to flow to the rest of Europe.
The bill was packaged with legislation revoking Russia's trade status, part of the government wide effort to penalize the Kremlin for invading Ukraine.
It will be difficult to resolve Ukraine war diplomatically unless the situation on the ground changes, according to Francis Fukuyama of Stanford University.
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