A World Cup where every team leads?

It's never happened before in a world cup that every team takes a lead (it had happened that every team scores a goal in previous world cups if you were curious). I mention this because there are so many games in this world cup in which the team who scored first ended up tying or even losing, thus several of the weaker teams in each group have taken leads (honduras, south korea, japan, australia) and every team in 2 of the groups of death.

As of the end of matches on June 22, 2014
The following 6 teams have not yet taken a lead in this world cup:

Cameroon
Greece
England
Iran
Bosnia
Russia

what are their chances of taking a lead in game 3?

Cameroon - haven't looked much like scoring at all in this world cup and going after a host nation Brazil who will probably be looking to put on a show. seems unlikely that Cameroon takes a lead. Still, Brazil have a long history of allowing the first goal before coming back to win, they even did it once already in this world cup. So there may be a slim chance

Greece - playing ivory coast. I wouldn't nessecarily expect greece to take a lead, but ivory coast have allowed the first in both of their games. again a slim chance

England -Costa Rica have proven to be a giant killers in this world cup, but I wouldn't write off England's ability to at the very least take a lead. decent chance.

Iran and Bosnia - now here's where it really gets tricky, as these two teams are playing against each other. Iran have not yet scored a goal and only allowed one. Bosnia have only scores one allowed goal in this world cup. For those reasons it seems unlikely that both sides will take a lead. However, both of these teams are up against a wall, so maybe the threat of world cup elimination will inspire a classic? slim chance.

Russia - Set a play Algeria. decent chance.

So it looks like the odds of this happening are pretty long, anyways its something interesting to look at as the group stage comes to a close