ADDIS ABABA/JAKARTA, March 20 (Reuters) - The world's biggest planemaker Boeing faced growing obstacles to returning its grounded 737 MAX fleet to the skies on Wednesday, while chilling details emerged of an Indonesian crash with similarities to the Ethiopian disaster.

ADDIS ABABA/PARIS/WASHINGTON (Reuters) - Europe and Canada said they would seek their own guarantees over the safety of Boeing's 737 MAX, further complicating plans to get the aircraft flying worldwide after they were grounded in the wake of two accidents killing more than 300 people.

ADDIS ABABA/PARIS/WASHINGTON, March 19 (Reuters) - Europe and Canada said they would seek their own guarantees over the safety of Boeing's 737 MAX, further complicating plans to get the aircraft flying worldwide after they were grounded in the wake of two accidents killing more than 300 people.

March 19 (Reuters) - Aviation regulator Transport Canada said on Tuesday it would conduct an "exhaustive review" of Boeing Co's flight control system, MCAS, used in the 737 MAX jets that were involved in two air crashes within the last five months.

OTTAWA (Reuters) - Canadian Prime Minister Justin Trudeau's government, seeking to move past a political crisis threatening its re-election, lavished new spending on middle-class voters in its budget on Tuesday, but the measures may be spread too thin to move the needle before October's vote.

LONDON, (Reuters) - People who use cannabis every day run a significantly higher risk of developing the serious mental illness psychosis, especially if they use more potent forms of the drug, such as skunk, scientists said.

LONDON, March 20 (Reuters) – People who use cannabis every day run a significantly higher risk of developing the serious mental illness psychosis, especially if they use more potent forms of the drug, such as skunk, scientists said.

OTTAWA (Reuters) - Canada will create a national drug agency to help cut the cost of prescription medications as part of a plan to broaden the state-funded healthcare program, the finance ministry said in its budget on Tuesday.

MIAMI (Reuters) - Rain wiped out the opening day play at the Miami Open on Tuesday, delaying the start of the tournament at its new Hard Rock Stadium home.