Pffft...

Biden's obvious frailty overshadowed serious national security issues at stake

My SpyTalk colleague Jonathan Broder and I picked the Hawk ‘n’ Dove, a venerable saloon on Capitol Hill, to watch last night’s presidential debate. And not just for its puckish, Vietnam War-era name, which the establishment claims “reflects an older Washington that believed in politics, not just politicking.”

As expected, the place was crammed with 30-so…