And Howard Russell, an insect expert at Michigan State University, says once they get to the marching point, they are difficult to stop.

VOA: special.2009.01.27

There is this audit and recount process. It is difficult to put a timeline to both of these activities at this point."

VOA: standard.2009.09.15

"This is the starting point. Unless there is an end, a real cessation from these activities, it will be difficult for any Palestinian negotiator to come back to the table.

VOA: standard.2009.04.09

She says it's no easy feat. "You have to kind of deliver so much of the story through your own written texts so it's difficult in that way because you have to get a character and a point across in 140 characters or less."

VOA: standard.2010.05.07