Kammala jumla mai zuwa: Inventor Gregory Sancoff ya yanke shawarar mayar da hankali kan kananan jiragen ruwa biyo bayan
harin da aka kai kan USS "Cole" a shekara ta 2000, bayan haka ya tuna cewa ya ce: "Wasu 'yan ta'adda na yahoo a cikin karamin jirgin ruwa mai arha da kuma abubuwan fashewa na dala 500 na iya kashe matuƙan ruwa 17 a kan jirgin ruwa na dala biliyan?" Har ila yau, ya zo ne a kan wani rahoto na 630 na Amurka Navy a kan wani motsa jiki da ake kira Juliet, inda Navy ta kai hari ga sojojin abokan gaba na kananan jiragen ruwa masu sauri; bayan kwana biyu, Navy ta sha wahala fiye da asarar rayuka 20,000. Sancoff ya tattara bayanai kan fasahar ruwa, gami da jiragen ruwa masu tsere da jiragen ruwa masu saurin gudu.