But since then, Lollapalooza has taken place every year except for a five-year break.

VOA: special.2009.06.08

But escalating violence has killed more than 22,000 people since then.

VOA: standard.2010.05.17

But they say things have changed in Afghanistan since then and Secretary Clinton told the audience of mostly students that it makes sense to examine the strategy and tactics being used to achieve those goals.

VOA: standard.2009.10.06