Christian in France expressed a different concern, saying: The big problem of the transgenic seeds is that they are the monopoly of big companies.

VOA: special.2010.05.18

"So it's still a big problem in the society. In my book,they are afraid of the father losing his green card.

VOA: standard.2010.07.22

The report says food is a big concern for most of the displaced and water too is emerging as a growing problem.

VOA: standard.2009.09.20

But President Barack Obama says a big part of the problem is soaring costs for health care.

VOA: standard.2009.06.13

"Illegal logging is such a big problem simply because of the size of it.

VOA: standard.2010.07.28

Today,the number is still 40 percent. Part of the problem is that a number of big importers, such as China and Japan, are not doing enough to stop the import and sale of illegal timber.

VOA: standard.2010.07.28