Have they also haarped 911 WTC? If you knew resonation frequency of WTC towers, could you shake them crumbling down?

HAARP explained. Remotely set off earthquakes, volcanoes, tornadoes? Yes. Frequency resonation is the key. Extremely high temperature, and high intensity magnetic fields.

http://worldnewsrecord.blogspot.com/2011/06/haarp-explained-remotely-set-off.html

World News Record: Imagine you knew resonation frequency of 911 WTC towers, for example. You truly could shake that thing crumbling to the ground, potentially.

or what is it?

here Tacoma Narrows bridge, explosion collapsed for no apparent reasons whatsoever.

The real reason for destruction was a gale force of wind, in a disposition frequency equal to a resonation frequency of a bridge structure itself.

In other words, a directed energy flow, with a frequency equal to that of a target.

Tacoma Narrows bridge collapse.
http://www.youtube.com/watch?v=j-zczJXSxnw