The article text provided does not contain details of the announcement because access to the page was denied. Based on the title, it concerns a live event in which President Trump and Transport Secretary Sean Duffy were expected to unveil plans to renovate Washington Dulles International Airport.

No information is available in the supplied text about the proposed works, costs, timetable, funding, or reasons for the renovation. The significance and specific implications of the plans therefore cannot be confirmed from the material provided.