If they had been Fatah activists, they would have, left the country, found jobs as "Visiting Scholars" or "Adjunct Professors" abroad and become professional Palestinians. But the Hamas people are serious and do not compromise. Not one of them was willing to leave the country in any manner short of physical expulsion via the armed branches of the Israeli authorities. The point being that this act-of-refusal will earn Hamas more respect and strengthen their political appeal.
UN to hold off on separate Afghan bombing probe for now (Reuters)
from the article: Hamas official facing expulsion: I won't leave my ancestral home