1.   He said the problem had escalated over the past decade.

2.   As Andrew, who was described as mildly retarded, grew older, his behavioral problems escalated.

3.   For openers, Reilly last week canceled generous severance packages for two executives on whose watch the problem escalated out of control.

4.   From there, the problems escalate.

5.   If the problems escalate and travel is disrupted, Delta could go to court to stop what it believes to be job action.

6.   Neighbors said they feared the problems would escalate as a massive expansion of the dump begins this summer.

7.   Problems escalated when a compound was applied to the low spots and began emitting a fume that was linked to widespread ailments among employees.

8.   Problems escalated from there.

9.   Such problems may escalate, now that their ripped-from-the-headlines story is about to become a prime-time drama.

10.   The problem is escalating.