First of all, it seems there have been two incidents in the Strait of Hormuz. One was in December, and led to a U.S. captain firing warning shots. The article does not specify what happened. The second more recent incident involved five Iranian "launches." Apparently they "careered" around 3 US warships for about 30 minutes. They dropped objects in the water in the path of one of the vessels, and a radio transmission declared a US ship would "explode."
Navy analysts think that the confrontation was likely a "deliberate effort by Iran's Islamic Revolutionary Guard Crops to persuade US vessels to open fire on them." And based on the report, I tend to agree. I have to think about being on the Navy ship, in "hostile" territory. What would you think if ships started circling and taunting you? Unknown boxes in the water. Weird transmissions. It all seems kinda sketchy, and I'm sure I would have been unsettled.
Newsweek also posted a letter from the US to Iran, which I thought was kinda interesting.
However, the article ends by saying that "US warships by IRGC launches comes as the guard has taken more control of Gulf operations from Iran's regular Navy." I am a little confused about this...
There is a video on YouTube that compiles how this story was covered on different news stations. It's worth watching, I think.