Alex & Adam
"How do you know?" Alex had high tech set up to detect heat signatures when someone came through the portal. He got the notification just as he was informed by this man in front of him that there was a new arrival. Interesting.
He nodded, though. "Sam helps out with research and stuff." And he'd taken in a couple of the teenagers who didn't have anyone else to look after them. Alex appreciated that. Annoying as it may be to have these people coming to Roswell from other places, Alex wanted to help them as much as he could.