Petty Officers 1st Class Ryan Cross and Billy Porter, both K-9 handlers from Coast Guard Maritime Safety and Security Team Seattle, search the motor vessel Ironwood with their partners, Thomas and Crema, during a maritime response exercise on the Columbia River May 21, 2014. The multi-agency exercise tested the readiness of the participants' ability to handle various potential threats. (Official Coast Guard photo by Petty Officer 1st Class Zac Crawford)