Norma Fiorentino's water well blew up on New Year's Day 2009, throwing cement slabs into the air.

VOA: standard.2010.01.02

It says air quality is an important factor as well.

VOA: standard.2009.03.23

Aircraft consultant Richard Aboulafia says while air travel appears to be making a comeback, demand for first class tickets remains sluggish and airline revenues are well below 2008 peak levels.

VOA: standard.2010.03.30

"This was a hugely significant attack plan. With that number of aircraft, with the types of destination that were being talked about, it is conceivable to think of upwards of 2,000 casualties in the air depending on the point of detonation whether others would have been caught on the ground as well.

VOA: standard.2009.09.07