also involve traveling at one-tenth the speed of light."

See:

http://www.newsweek.com/alien-life-a...mission-752528

It makes no sense to propose an interstellar mission without
a viable propulsion system.

If it is real, then they should have a program to design
and build a proper rocket. The first version should be
a brute force hydrazine fuel rocket. Just compute the mass
of fuel to be sent into orbit.