I remember hearing about the dems doing this before. When the protest was over, the area they were protesting in was littered with the flags. When they were done using them for the protest, they just threw them down or in the trash and walked away.
That has happened at far too many democrat events to list them all.
One of the most notable incidents was after the Barack Obama nomination at the DNC convention in 2008.
DEMS TRASH U.S. FLAGS AT DNC CONVENTION
http://www.wnd.com/2008/09/74563/
Following their national convention in Denver last week, Democratic organizers heaped up thousands of unused U.S. flags, allegedly to throw them away, but the McCain campaign has since salvaged the Star-Spangled Banners for reuse at a rally in Colorado Springs.
A Denver Post blog reports that a vendor at Denver’s Invesco Field discovered the discarded flags following Barack Obama’s nomination speech at the mile-high stadium last week.
Democratic organizers have claimed that the flags were not meant to be thrown in the trash, but according to a Fox News report, McCain supporters claim the vendor found the bagged flags in and around garbage bins following the Democratic National Convention.
A group of Boy Scouts brought 84 garbage bags full of the discarded flags to the site of a Republican rally in Colorado Springs today, where veterans distributed them throughout the assembled crowd. McCain supporters waved the recycled flags and chanted “U.S.A.” as they welcomed Republican candidate John McCain and his running mate, Sarah Palin.
The Post blog reports an estimated total of 12,000 small flags and one, full-size 3’x5′ flag were discarded.