I am certain you will dismiss my source. But
http://www.washingtonexaminer.com/t...ubmarine-locations-to-duterte/article/2624033
"But a quick check of the U.S. Navy's website shows the Navy itself publicly announced the USS Michigan's arrival in Busan on April 25 in a news release, four days before Trump's phone call with Duterte. On May 2, the Navy announced in another news release that the USS Cheyenne had arrived at Sasebo.
Though the Cheyenne announcement came after Trump's call with Duterte, it's an indication that the information is not as sensitive as some are suggesting.
Given that the Navy itself had released news of the Michigan's arrival days before the phone call even took place, reports characterizing Trump's comments as a "revelation" are probably a bit hysterical."
http://dailycaller.com/2017/05/24/m...tions-but-everyone-likely-already-knew-video/
"The Navy revealed on April 25 that the nuclear-powered, Ohio-class submarine USS Michigan (SSGN 727) arrived in Busan, South Korea for a port call and to strengthen the partnership with the South Korean Navy.
Videos of the Michigan were released online by news outlets."
Oh and from the Navy's own site,
http://www.navy.mil/submit/display.asp?story_id=100072
Like I said, keep up the stupid.