WATCH: Congress returns to marquee hearings next week 

Congress returns Tuesday from a news-filled Easter recess to tackle tough issues at a number of high-profile hearings on Capitol Hill.

Facebook CEO Mark Zuckerberg, who is set to face questions over his company's privacy protections for users, will testify for two days before House and Senate panels.

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Key Trump administration officials are also poised to face a grilling from lawmakers over President Trump's recent border security and military moves. 

Click on the video above to discover who will be on the hot seat next week.