There's a lot of it about.

Quick Google turns up these, some familiar, others less so:
New site planned for Boer_war memorial - Coventry Telegraph
Thieves steal crosses from British graves to melt down for scrap - Telegraph
BBC NEWS | England | Tees | Stolen church war memorial found
icBirmingham - Brothers accused of damaging war memorial
Scrap-Metal Thieves Destroy War Memorial - Connecticut News Story - WFSB Hartford
Metal thieves make off with hundreds of veterans' grave markers - On Deadline - USATODAY.com
Thieves steal brass panels from walls of World War II memorial - On Deadline - USATODAY.com
Despicable - News - Tameside Advertiser
YouTube - Bronze Eagle Stolen From War Memorial Found

And a pretty appalling long list of memorial thefts from the UKNIWM :
Theft « UKNIWM

Cheers,
Adam.

__________________
It's only the Internet.