'SNL' Star Cecily Strong -- Cracks Racist Cops Joke on Obama ... As Baltimore Riots Raged

Cracks Racist Cops Joke on Obama ...

As Baltimore Riots Raged

Cecily Strong went in HARD on President Obama and the Secret Service with an envelope-pushing joke about cops killing black men -- and she did it just miles from the Baltimore riots over that very issue.

Cecily hosted the White House Correspondents Dinner on Saturday night, and got the biggest reaction from the room when she said the Secret Service is "the only law enforcement agency in the country that will get in trouble if a black man gets shot."

Amid the gasps ... she unleashed another racially charged follow-up joke.

Meanwhile, 30 miles outside the Beltway ... the Baltimore riots over Freddie Gray's death in police custody turned so violent police told Orioles fans to stay inside the stadium after the game.

So, we gotta ask ...