It takes more than 45 minutes to arrange a flight to Vietnam. It's more likely to take days or weeks. Even with an 'official' passport, a visa is required for the specific trip. Once in country there is absolutely no way that the Government of Vietnam would allow a US agent or one from any other country for that matter, to arrest a suspect, especially with weapons drawn. Laughable indeed.
Palmer hands McGee (And Abby) Caf-pows. McGee When McGee takes his first sip (and second) we hear the sound of a straw sucking an empty cup.
Hawkins dies at age 65. Kent who was senior to him died 45 years earlier. That would make Hawkins 20 & a staff sergeant ? Looks older than 30 in the Viet Nam war photo. Kent's daughter was a "baby" when her father died. Making her at least 45+ years old. Does not come close when interviewed by Gibbs. The whole serial goes way off in its time line.
The Navy yard is 30 miles from Dulles. Gibbs couldn't possibly make it to a flight leaving (according to McGee) "in 45".