Even if you've done nothing wrong, it's never a good idea to hand your phone to the cops. But international travelers at American airports often have no choice - even if they're US citizens. When Minnesota labor organizer Janette Zahia Corcelius returned home from a three-week trip to Europe in late April, she was detained and questioned by customs agents at Minneapolis-St. Paul International Airport. Before they let her go, the agents searched her luggage twice, confiscated political literatur