At face value, why would Kissinger be at the service. He didn't attend Tedd Kennedy's service. Supposedly he hasn't been engaged in politics for much longer and he's much older now.
http://archive.boston.com/news/local/massachusetts/articles/2009/08/30/the_notables_who_attended_senator_kennedys_funeral/
For those that know what's going on:
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POTUS and HRC were briefed by Kissinger during the 2016 campaign
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Kissinger held suspicious board positions (Theranos)
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insiders have reported Kissinger's involvement in space activities
So, yeah, his number is up. If not, it should be.