Start your week smart: Security tactics at protests, Henry Cuellar, Al Jazeera, Canadian assassination, Kentucky Derby winner | Nation & World [Video]

(CNN) — Today is Cinco de Mayo, a holiday celebrated in some parts of Mexico that’s become a marketing bonanza for the US food and beverage industry. And there’s no better time than the present to bring back CNN’s helpful guide to what Cinco de Mayo is … and is not.

Here’s what else you need to know to Start Your Week Smart.

The weekend that was

• As colleges turn to police to clear their campuses of protests over Israel’s assault on Gaza that continue to ripple across the nation, the response by law enforcement is under heightened scrutiny. Some demonstrators interrupted graduation ceremonies this weekend. Follow live updates.

• Democratic Rep. Henry Cuellar of Texas and his wife were charged with accepting nearly $600,000 in bribes from two foreign entities, according to an indictment in federal court in Texas. They were released on a $100,000 bond.

• Israel’s Prime Minister Benjamin Netanyahu said the operations of Qatar-based news …