Officials: U.S. troops have fired from base inside Afghanistan at Pakistan 4 times

cnn.com — FOB Tillman, Afghanistan (CNN) -- U.S. troops have fired into Pakistani territory at least four times in the last 10 months in cross-border skirmishes that they say are in response to shelling from inside Pakistan, CNN has learned.
Joe Sterling Digital Reporter, CNN @jsterlingcnn
Officials: U.S. troops have fired from base inside Afghanistan at Pakistan 4 times t.co/5LNgVcwx #cnn
Dion Nissenbaum National Security Reporter, Wall Street Journal @DionNissenbaum
US tensions with Pakistan continue along Afghan-Pakistan border: from @npwcnn t.co/Qh1IO9fj
Saeed Ahmed Supervising News Editor, CNN Wire, CNN @SaeedCNN
Officials: U.S. troops have fired from base inside Afghanistan at Pakistan 4 times t.co/IOODNNbm