The 100% cotton Star Trek Federation Navy Tank Top is for showing off your appreciation and letting others appreciate your 'phasers'...which I think is like the future-equivalent of what we refer to as 'guns' these days. They changed it to 'phasers' after First Contact. Believe it or not, I'm pretty sure the Vulcans show up here to pick up the Star Trek Federation Navy Tank Top and that 'breaking the light barrier' thing is just a front. They just really want this great tank top featuring the logo for the Federation of Planets! Hooray Space Republics!