Romans in the Americas

[MARCVS PETRONIVS MAIVS]

Well, in all honesty, I don't see a problem with the Romans having been to the Americas. Maybe they did.

It's just highly improbable that some poor shipwrecked Roman sailors ended up there. I don't think this would work, as the currents won't drift a wrecked ship to North-America (site on currents: http://www.oceanweather.com/data/ ) To get there the ships crew would have had to cross against currents and winds, this implying they knew what they did before. Further the Romans (other than the Vikings who, besides, used the northern Route!) weren't technically able and had no adequate ships for the open sea.
The problem with Romans in America so far is that any other explanation of these finds (IF there are any, that stand to scientific examination) is way more plausible than Romans landing in America.
Sorry, I'd like the idea, too.

Well, I don't know, weather is such an unpredictable thing. All you need is maybe some fog, a lot of luck and maybe a freak wave. Many variables come into the equation which is one reason I would not fully abandon the hypothesis, although that is all it will probably ever remain, a hypothesis. However unlikely it could have been for the odd bireme or trading vessel to end up in the Americas, I would certainly never exclude the possibility.