Tesla, Samsung oppose new US tariffs on Vietnam as probe deadline nears

1. What happened

   According to a Reuters headline, Tesla and Samsung oppose new US tariffs on Vietnam. The provided material contains only the headline, so the companies' specific objections are not detailed here.

2. When it started

   The headline says a probe deadline is approaching, but the exact date is not included in the provided material.

3. How it spread

   The provided material does not explain how the proposed tariffs or the probe would work, including which authority is conducting it.

4. Why it matters

   The reasons Tesla and Samsung gave for opposing the tariffs are not stated in the provided material.