On April 27th 2014, during World Week for Animals in Laboratories, extremists in Oregon, USA, daubed red paint across the front doors and walls of the sales office of Carter2 Systems Inc, a lab animal cage manufacturer and supplier.
The action was reported by an anonymous communique to the Bite Back website, and independently verified.
The red paint was meant to symbolise "the blood of the millions of nonhuman animals". The action was done in solidarity with Gateway To Hell campaign, which has campaigned against the transportation of primates across the world. Carter2 Systems is located close to Oregon National Primate and Research Center, which has been subject to many animal rights campaigns over the years, and the attack on Carter2 Systems was apparently done in solidarity with those campaigns.