Investigations into the New Year’s Day terrorist attack in New Orleans and a separate incident hours later outside President-elect Donald Trump‘s hotel in Las Vegas have put homeland security in the spotlight ahead of the Jan. 20 inauguration.

Presidential transitions are inherently periods of uncertainty as the leadership of the federal government changes hands, but the deadly attacks to start 2025, coupled with two attempts on the president-elect’s life during the campaign, are poised to cast a shadow over Trump’s swearing-in festivities in Washington.