they had tun out of alternatives.

[GoodTaste]

Others may have felt that they had tun out of alternatives. Virtual prisoners in a jungle outpost 150 miles from a major airport, lacking money, resources or passports, many must have believed they had come too far, repudiated too much, to turn back.

Source: NYTimes

I think tun is the typo of run. Am I on the right track?

 

[5jj]

Yes.

 

[Tarheel]

I read it as "run" the first time. That's probably because my brain has been trained to expect that.