India, June 29 -- A new trade probe is reigniting a long-running clash over who should pay for medical innovation. Washington argues Germans benefit from lower prices while US patients shoulder a disproportionate share of the costs.

In the world according to Donald Trump, every nation on the face of the earth is "ripping off" the United States - that goes for pharmaceuticals, too, especially those from Germany.

Now, the Trump administration is targeting Germany with an investigation. Washington says it wants to find out if US patients and businesses are being forced to pay disproportionately higher prices for the research and development of top-tier pharmaceuticals so that German patients can pay less.

Watch| As Putin's threat looms, t...